PBDB

Opinions from A. Williams et al. 2000

'Aberia belongs to Rhactorthidae'
'Aboriginella belongs to Lingulellotretidae'
'Absenticosta belongs to Plicatiferini'
'Acanthalosia belongs to Dasyalosiinae'
'Acanthambonia belongs to Siphonotretidae'
'Acanthatia belongs to Araksalosiinae'
'Acanthocosta belongs to Tolmatchoffiini'
'Acanthocrania belongs to Craniidae'
'Acanthoplecta belongs to Levitusini'
'Acanthoproductus belongs to Semiproductini'
'Acanthorthis belongs to Platystrophiidae'
'Acanthotoechia belongs to Polytoechiidae'
'Acareorthis belongs to Chileidae'
'Acculina belongs to Leptellininae'
'Achunoproductus is a subjective synonym of Schrenkiella'
'Acosarina belongs to Schizophoriidae'
'Acritosia belongs to Teguliferininae'
'Acrosaccus belongs to Discinidae'
'Acrothele belongs to Acrothelinae'
'Acrothelidae belongs to Acrotheloidea'
'Acrothelinae belongs to Acrothelidae'
'Acrotheloidea belongs to Lingulida'
'Acrothyra belongs to Acrotretidae'
'Acrotreta belongs to Acrotretidae'
'Acrotretacea is replaced by Acrotretoidea'
'Acrotretella belongs to Torynelasmatidae'
'Acrotretida belongs to Lingulata'
'Acrotretidae belongs to Acrotretoidea'
'Acrotretoidea belongs to Acrotretida'
'Actinomena belongs to Strophomeninae'
'Adairia is a subjective synonym of Inflatia'
'Adectorhynchinae belongs to Areostrophiidae'
'Adectorhynchus belongs to Adectorhynchinae'
'Adensu belongs to Adensuidae'
'Adensuidae belongs to Trimerelloidea'
'Adiaphragma is a subjective synonym of Leptagonia'
'Admixtella belongs to Polytoechiidae'
'Admodorugosus belongs to Levitusini'
'Adriana belongs to Poikilosakinae'
'Aegiria belongs to Aegiromeninae'
'Aegiria (Epelidoaegiria) was reranked as Epelidoaegiria and belongs to Aegiromeninae'
'Aegiromeninae belongs to Xenambonitidae'
'Aegironetes is a subjective synonym of Aegiria'
'Aesopomum belongs to Areostrophiinae'
'Aesopomum chinensis belongs to Aesopomum' according to Hamada 1971
'Aesopomum chinensis is recombined as Hinganella chinensis' according to Su 1980
'Aesopomum chinensis is recombined as Iridistrophia chinensis'
'Agelesia belongs to Agelesiinae'
'Agelesiinae belongs to Aulostegidae'
'Agramatia belongs to Rhytialosiinae'
'Agyrekia belongs to Kutorginidae'
'Ahtiella belongs to Ahtiellinae'
'Ahtiellinae belongs to Taffiidae'
'Airtonia belongs to Airtoniinae'
'Airtoniinae belongs to Anopliidae'
'Akatchania belongs to Anidanthinae'
'Akelina belongs to Plectambonitinae'
'Akmolina belongs to Ephippelasmatidae'
'Aktassia belongs to Acrotretidae'
'Alatoproductus belongs to Sentosiini'
'Alatorthotetina belongs to Meekellinae'
'Aldanotreta belongs to Cryptotretidae'
'Alexenia belongs to Spyridiophorini'
'Alichovia belongs to Siphonotretidae'
'Alimbella belongs to Anomalorthidae'
'Alisina belongs to Trematobolidae'
'Alitaria belongs to Paramarginiferini'
'Allanetes belongs to Notiochonetinae'
'Altaeorthis is a subjective synonym of Dolerorthis'
'Altaestrophia is a subjective synonym of Leptodontella'
'Altorthis is a subjective synonym of Nothorthis'
'Altorthis kinderlensis is recombined as Nothorthis kinderlensis'
'Ambardella is a subjective synonym of Pleurorthis'
'Ambonorthella belongs to Rhipidomellinae'
'Ametoria belongs to Juresaniini'
'Amictocracens belongs to Acrotretidae'
'Amosina belongs to Strophochonetinae'
'Amphistrophia belongs to Amphistrophiinae'
'Amphistrophiella was reranked as Amphistrophia (Amphistrophiella) and belongs to Amphistrophia'
'Amphistrophiidae belongs to Strophomenoidea'
'Amphistrophiinae belongs to Amphistrophiidae'
'Amphistrophiella (Amsdenostrophiella) is a subjective synonym of Amphistrophia (Amphistrophiella)'
'Anabolotreta belongs to Acrotretidae'
'Anatreta is a subjective synonym of Pomeraniotreta'
'Anchigonites belongs to Gonambonitidae'
'Ancistrocrania belongs to Craniidae'
'Ancylostrophia is a subjective synonym of Teichostrophia'
'Andalucinetes belongs to Strophochonetinae'
'Andobolus belongs to Problematica'
'Anechophragma is a subjective synonym of Calyptolepta'
'Anechophragma rarum is recombined as Calyptolepta rarum'
'Anelotreta belongs to Acrotretidae'
'Anelotreta magna belongs to Anelotreta' according to Pelman 1986
'Anemonaria belongs to Paucispiniferini'
'Angulotreta belongs to Acrotretidae'
'Angusticardinia belongs to Angusticardiniidae'
'Angusticardiniidae belongs to Dalmanelloidea'
'Anidanthinae belongs to Linoproductidae'
'Anidanthus belongs to Anidanthinae'
'Anisopleurella belongs to Sowerbyellinae'
'Anomaloglossa belongs to Obolinae'
'Anomalorthidae belongs to Orthoidea'
'Anomalorthis belongs to Anomalorthidae'
'Anoplia belongs to Anopliinae'
'Anopliella belongs to Anopliinae'
'Anopliidae belongs to Chonetoidea'
'Anopliinae belongs to Anopliidae'
'Anopliopsis belongs to Anopliinae'
'Anoptambonites belongs to Hesperomenidae'
'Ansehia belongs to Cooperininae'
'Antiquatonia belongs to Retariini'
'Anx belongs to Glossellinae'
'Apatobolus belongs to Obolinae'
'Apatomorpha belongs to Palaeostrophomeninae'
'Apatorthis belongs to Angusticardiniidae'
'Apatoskenidioides is a nomen dubium'
'Aphanomena is a subjective synonym of Eostropheodonta'
'Aphelotreta belongs to Acrotretidae'
'Apheoorthina belongs to Eoorthidae'
'Apheoorthis belongs to Eoorthidae'
'Apicilirella is a subjective synonym of Xystostrophia'
'Apollonorthis belongs to Plectorthidae'
'Apomatella belongs to Clitambonitidae'
'Aporthophyla belongs to Taffiinae'
'Aporthophylina belongs to Taffiinae'
'Apsilingula belongs to Lingulidae'
'Apsocalymma belongs to Orthotetidae'
'Apsotreta belongs to Acrotretidae'
'Araksalosia belongs to Araksalosiinae'
'Araksalosiidae belongs to Strophalosioidea'
'Araksalosiinae belongs to Araksalosiidae'
'Araxilevis belongs to Tyloplectini'
'Arbizustrophia belongs to Strophodontidae'
'Archaeorthis belongs to Nanorthidae'
'Archaiosteges belongs to Echinosteginae'
'Archeochonetes belongs to Strophochonetinae'
'Articalosia is a misspelling of Arcticalosia'
'Arcticalosia belongs to Dasyalosiinae'
'Arctitreta belongs to Streptorhynchinae'
'Arctireta is a misspelling of Arctitreta'
'Arctochonetes belongs to Rugosochonetinae'
'Arctohedra belongs to Arctohedridae'
'Arctohedridae belongs to Protorthoidea'
'Arcualla was reranked as Isorthis (Arcualla) and belongs to Isorthis'
'Arcuaminetes belongs to Caenanopliinae'
'Ardiviscus belongs to Leioproductini'
'Ardmosteges belongs to Teguliferininae'
'Arenorthis belongs to Heterorthidae'
'Areostrophia belongs to Areostrophiinae'
'Areostrophiidae belongs to Chilidiopsoidea'
'Areostrophiinae belongs to Areostrophiidae'
'Argentiproductus belongs to Productinini'
'Artimyctella belongs to Problematica'
'Artiotreta is a subjective synonym of Scaphelasma'
'Aseptella belongs to Plicatiferini'
'Aseptonetes belongs to Devonochonetinae'
'Asioproductus is a subjective synonym of Transennatia'
'Askepasma belongs to Cryptotretidae'
'Asperlinus belongs to Auriculispininae'
'Aspinosella is a subjective synonym of Kutorginella'
'Astraborthis belongs to Anomalorthidae'
'Asturistrophia was reranked as Strophodonta (Asturistrophia) and belongs to Strophodonta'
'Asymmetrochonetes belongs to Strophochonetinae'
'Asymphylotoechia belongs to Polytoechiidae'
'Atelelasma belongs to Clitambonitidae'
'Atelelasmoidea belongs to Gonambonitidae'
'Atelestegastus belongs to Cooperininae'
'Athyridida belongs to Rhynchonellata'
'Atlantida belongs to Plectorthidae'
'Auchmerella belongs to Donalosiinae'
'Aulacella belongs to Rhipidomellinae'
'Aulacophoria belongs to Schizophoriidae'
'Aulacorhynchus is replaced by Isogramma'
'Aulie belongs to Hesperomenidae'
'Aulonotreta belongs to Aulonotretidae'
'Aulonotretidae belongs to Linguloidea'
'Auloprotonia belongs to Dictyoclostinae'
'Aulosteges belongs to Aulosteginae'
'Aulostegidae belongs to Aulostegoidea'
'Aulosteginae belongs to Aulostegidae'
'Aulostegoidea belongs to Strophalosiidina'
'Auriculispina belongs to Auriculispininae'
'Auricolispina is a misspelling of Auriculispina'
'Auriculispininae belongs to Monticuliferidae'
'Austinella belongs to Plaesiomyinae'
'Australosia belongs to Donalosiinae'
'Australostrophia belongs to Strophochonetinae'
'Austrohedra belongs to Eoorthidae'
'Austronoplia belongs to Retichonetinae'
'Avonia belongs to Avoniini'
'Avonia (Quasiavonia) was reranked as Quasiavonia and belongs to Avoniini'
'Avoniini belongs to Overtoniinae'
'Babina belongs to Strophochonetinae'
'Bagnorthis is a subjective synonym of Onniella'
'Bagrasia is a subjective synonym of Ericiatia'
'Bagrasiini belongs to Sentosiinae'
'Bailliena belongs to Horridoniini'
'Baissalosteges belongs to Echinosteginae'
'Bajanhongorella belongs to Furcitellinae'
'Bajanorthis is a nomen dubium'
'Balakhonia belongs to Linoproductinae'
'Balkhasheconcha belongs to Waagenoconchini'
'Bancroftina belongs to Dalmanellinae'
'Bandoproductus belongs to Linoproductinae'
'Barbaestrophia belongs to Leptostrophiidae'
'Barbarorthis belongs to Hesperorthidae'
'Barbatulella belongs to Obolinae'
'Barroisella belongs to Lingulidae'
'Barunkhuraya belongs to Avoniini'
'Bathymyonia belongs to Juresaniini'
'Baturria belongs to Proschizophoriidae'
'Bekkeromena was reranked as Kiaeromena (Bekkeromena) and belongs to Kiaeromena'
'Beleutella belongs to Gigantoproductini'
'Bellaclathrus belongs to Buxtoniini'
'Bellimurina belongs to Furcitellinae'
'Bibatiola belongs to Paramarginiferini'
'Bicarinatina belongs to Pseudolingulidae'
'Bicia belongs to Obolellidae'
'Bicuspina belongs to Triplesiidae'
'Biernatia belongs to Biernatidae'
'Biernatidae belongs to Acrotretoidea'
'Biernatium belongs to Mystrophoridae'
'Billingsella belongs to Billingsellidae'
'Billingsella (Otusia) was reranked as Otusia and belongs to Eoorthidae'
'Billingsellida belongs to Strophomenata'
'Billingsellidae belongs to Billingselloidea'
'Billingsellidina belongs to Billingsellida'
'Billingselloidea belongs to Billingsellidina'
'Bilobia belongs to Leptestiidae'
'Bimuria belongs to Bimuriidae'
'Bimuriidae belongs to Plectambonitoidea'
'Biparetis belongs to Furcitellinae'
'Bistramia belongs to Linguloidea'
'Blyskavomena is a subjective synonym of Dactylogonia'
'Bohemiella belongs to Bohemiellidae'
'Bohemiellidae belongs to Orthoidea'
'Boicinetes belongs to Chonetinae'
'Bojarinovia belongs to Naukatidae'
'Bojodouvillina belongs to Protodouvillininae'
'Bomina belongs to Botsfordiidae'
'Boonderella is a subjective synonym of Phaceloorthis'
'Boonderella fasciculata is recombined as Phaceloorthis fasciculata'
'Borua belongs to Ahtiellinae'
'Bothrionia belongs to Paramarginiferini'
'Bothrostegium belongs to Streptorhynchinae'
'Boticium belongs to Draboviinae'
'Botsfordia belongs to Botsfordiidae'
'Botsfordiidae belongs to Acrotheloidea'
'Boucotstrophia belongs to Strophodontidae'
'Bowanorthis belongs to Wangyuiidae'
'Bozshakolia belongs to Ceratretidae'
'Brachymimulus belongs to Triplesiidae'
'Brachyprion belongs to Leptostrophiidae'
'Bracteoleptaena belongs to Leptaeninae'
'Brahimorthis belongs to Eoorthidae'
'Brandysia belongs to Cremnorthidae'
'Brasilioproductus belongs to Tolmatchoffiini'
'Breileenia belongs to Breileeniini'
'Breileeniini belongs to Marginiferinae'
'Brevipelta belongs to Obolellidae'
'Brochocarina belongs to Orthotetidae'
'Broeggeria belongs to Elkaniidae'
'Bulahdelia belongs to Levipustulini'
'Buntoxia belongs to Juresaniini'
'Burovia belongs to Horridoniini'
'Buxtonia belongs to Buxtoniini'
'Buxtoniella belongs to Waagenoconchini'
'Buxtoniinae belongs to Productidae'
'Buxtoniini belongs to Buxtoniinae'
'Buxtonioides belongs to Buxtoniini'
'Bynguanoia belongs to Naukatidae'
'Bystromena belongs to Glyptomeninae'
'Cacemia belongs to Heterorthidae'
'Cactosteges belongs to Rhamnariinae'
'Caenanoplia belongs to Caenanopliinae'
'Caenanopliinae belongs to Anopliidae'
'Caenotreta is a subjective synonym of Opsiconidion'
'Caeroplecia belongs to Triplesiidae'
'Calliomarginatia is a subjective synonym of Kutorginella'
'Calliprotonia belongs to Calliprotoniini'
'Calliprotoniini belongs to Echinoconchinae'
'Callytharrella belongs to Dictyoclostinae'
'Calyptolepta belongs to Grorudiidae'
'Campylorthis belongs to Plaesiomyinae'
'Canalilatus belongs to Zhanatellidae'
'Cancrinella belongs to Grandaurispininae'
'Cancrinelloides belongs to Auriculispininae'
'Canthylotreta belongs to Acrotretidae'
'Capillomesolobinae belongs to Rugosochonetidae'
'Capillomesolobus belongs to Capillomesolobinae'
'Capillonia belongs to Svalbardiinae'
'Caplinoplia belongs to Caenanopliinae'
'Cardinocrania belongs to Lyttoniinae'
'Caricula belongs to Paucispiniferini'
'Carinastrophia belongs to Areostrophiinae'
'Cariniferella belongs to Cortezorthinae'
'Carlinia belongs to Productini'
'Carringtonia belongs to Rugaurini'
'Casquella belongs to Glossellinae'
'Castellaroina belongs to Leptostrophiidae'
'Cathaysia belongs to Paramarginiferini'
'Caucasiproductinae belongs to Sentosiidae'
'Caucasiproductus belongs to Caucasiproductinae'
'Caucasoproductinae is replaced by Paucispiniferini'
'Caucasoproductus belongs to Paucispiniferini'
'Cedulia is a subjective synonym of Rhyssochonetes'
'Celdobolus belongs to Siphonotretidae'
'Celebetes belongs to Chonetellini'
'Celidocrania is a subjective synonym of Acanthocrania'
'Celtanoplia belongs to Caenanopliinae'
'Ceocypea belongs to Epiceliinae'
'Ceratreta belongs to Ceratretidae'
'Ceratretidae belongs to Acrotretoidea'
'Chaganella belongs to Hesperomenidae'
'Chalimochonetes is an objective synonym of Boicinetes'
'Chaoiella belongs to Dictyoclostinae'
'Chaoina is a nomen nudum'
'Chattertonia belongs to Productellinae'
'Chaulistomella belongs to Plaesiomyinae'
'Chelononia belongs to Streptorhynchinae'
'Chengxiangoproductus is a misspelling of Chenxianoproductus'
'Chenxianoproductus is a subjective synonym of Alatoproductus'
'Chianella belongs to Auriculispininae'
'Chile belongs to Chileidae'
'Chileida belongs to Chileata'
'Chileidae belongs to Matutelloidea'
'Chilenochonetes is corrected as Yagonia and belongs to Anopliinae'
'Chilianshania belongs to Monticuliferinae'
'Chilidiopsidae belongs to Chilidiopsoidea'
'Chilidiopsididae is a misspelling of Chilidiopsidae'
'Chilidiopsinae belongs to Chilidiopsidae'
'Chilidiopsis is a subjective synonym of Coolinia'
'Chilidiopsoidea belongs to Orthotetidina'
'Chilidorthis belongs to Bohemiellidae'
'Chlupacina belongs to Strophochonetinae'
'Choanodus belongs to Poikilosakinae'
'Choanoproductus is a nomen nudum'
'Chonetacea is replaced by Chonetoidea'
'Chonetella belongs to Chonetellini'
'Chonetellidae is replaced by Chonetellini'
'Chonetellini belongs to Productininae'
'Chonetes belongs to Chonetinae'
'Dienerella is an objective synonym of Waagenites'
'Chonetida is replaced by Chonetidina'
'Chonetidae belongs to Chonetoidea'
'Chonetidina belongs to Productida'
'Chonetina belongs to Anopliinae'
'Chonetinae belongs to Chonetidae'
'Chonetinella belongs to Rugosochonetinae'
'Chonetinetes belongs to Svalbardiinae'
'Chonetipustula belongs to Quadratiinae'
'Chonetoidea belongs to Aegiromeninae'
'Chonetoidea belongs to Chonetidina'
'Chonopectella is a nomen nudum'
'Chonopectinae was reranked as the family Chonopectidae and belongs to Strophalosioidea'
'Chonopectoides belongs to Devonoproductinae'
'Chonopectus belongs to Chonopectidae'
'Chonosteges belongs to Chonosteginae'
'Chonosteginae belongs to Aulostegidae'
'Chonostegoidella is a subjective synonym of Alatoproductus'
'Chonostegoides belongs to Chonosteginae'
'Chonostrophia belongs to Chonostrophiidae'
'Chonostrophiella belongs to Chonostrophiidae'
'Chonostrophiidae belongs to Chonetoidea'
'Christianella is a subjective synonym of Christiania'
'Christiania belongs to Christianiidae'
'Christianiidae belongs to Strophomenoidea'
'Chrustenopora belongs to Chrustenoporidae'
'Chrustenoporidae belongs to Enteletoidea'
'Chynistrophia belongs to Leptostrophiidae'
'Cilinella belongs to Heterorthidae'
'Cinctifera belongs to Semicostellini'
'Cinerorthis belongs to Glyptorthidae'
'Clavodalejina belongs to Rhipidomellinae'
'Cliftonia belongs to Triplesiidae'
'Clinambon belongs to Clitambonitidae'
'Clistotrema is a subjective synonym of Keyserlingia'
'Clitambonites belongs to Clitambonitidae'
'Clitambonitidae belongs to Clitambonitoidea'
'Clitambonitidina belongs to Billingsellida'
'Clitambonitoidea belongs to Clitambonitidina'
'Colaptomena belongs to Rafinesquininae'
'Collemataria belongs to Lyttoniinae'
'Collumatus belongs to Cyclacanthariinae'
'Comatopoma belongs to Giraldiellidae'
'Companteris belongs to Productini'
'Compressoproductinae belongs to Monticuliferidae'
'Compressoproductus belongs to Compressoproductinae'
'Comuquia belongs to Costispiniferini'
'Connectoproductus is a subjective synonym of Linoprotonia'
'Conodiscinae belongs to Acrothelidae'
'Conodiscus belongs to Conodiscinae'
'Conotreta belongs to Acrotretidae'
'Contradouvillina belongs to Protodouvillininae'
'Coolinia belongs to Chilidiopsinae'
'Coolkilella belongs to Linoproductinae'
'Cooperina belongs to Cooperininae'
'Cooperinidae belongs to Aulostegoidea'
'Cooperininae belongs to Cooperinidae'
'Corbicularia belongs to Caenanopliinae'
'Cordatomyonia belongs to Proschizophoriidae'
'Corineorthis belongs to Plectorthidae'
'Coronalosia belongs to Strophalosiinae'
'Cortezorthinae belongs to Dalmanellidae'
'Cortezorthis belongs to Cortezorthinae'
'Coscinarina belongs to Richthofeniidae'
'Coscinophora belongs to Lyttoniinae'
'Costachonetes belongs to Caenanopliinae'
'Costachonetina belongs to Caenanopliinae'
'Costalosia is a subjective synonym of Licharewiella'
'Costalosiella belongs to Dasyalosiinae'
'Costatumulus belongs to Auriculispininae'
'Costellariinae is a subjective synonym of Institellinae'
'Costellarina belongs to Institellinae'
'Costiferina belongs to Paucispiniferini'
'Costisorthis belongs to Isorthinae'
'Costispinifera belongs to Costispiniferini'
'Costispiniferini belongs to Overtoniinae'
'Costisteges belongs to Chonosteginae'
'Costistrophomena was reranked as Katastrophomena (Costistrophomena) and belongs to Katastrophomena'
'Costistrophonella is a subjective synonym of Strophonella'
'Costitrimerella belongs to Trimerellidae'
'Craigella belongs to Triplesiidae'
'Crania belongs to Craniidae'
'Crania dodgei is recombined as Petrocrania dodgei'
'Craniacea is corrected as Cranioidea and belongs to Craniida'
'Craniella is replaced by Petrocrania'
'Craniella hamiltoniae is recombined as Petrocrania hamiltoniae'
'Craniida belongs to Craniata'
'Craniidae belongs to Cranioidea'
'Craniops belongs to Craniopsidae'
'Craniopsida belongs to Craniata'
'Craniopsidae belongs to Craniopsioidea'
'Craniopsioidea belongs to Craniopsida'
'Craniotreta belongs to Acrotretoidea'
'Craniscus belongs to Craniidae'
'Craspedalosia belongs to Strophalosiinae'
'Craspedelia belongs to Bimuriidae'
'Craspedona belongs to Institellinae'
'Cremnorthidae belongs to Plectorthoidea'
'Cremnorthis belongs to Cremnorthidae'
'Crinistrophia was reranked as Douvillinella (Crinistrophia) and belongs to Douvillinella'
'Cristicoma belongs to Torynelasmatidae'
'Cristiferina is a subjective synonym of Paucicrura'
'Crossacanthia belongs to Plicatiferini'
'Crossalosia belongs to Dasyalosiinae'
'Crossiskenidium belongs to Skenidiidae'
'Crozonorthis belongs to Platyorthidae'
'Crozonorthis musculosa belongs to Crozonorthis'
'Cryptothyris belongs to Dalmanellinae'
'Cryptotreta belongs to Cryptotretidae'
'Cryptotretidae belongs to Paterinoidea'
'Ctenalosia belongs to Ctenalosiinae'
'Ctenalosiinae belongs to Aulostegidae'
'Ctenochonetes belongs to Strophochonetinae'
'Cubacula belongs to Juresaniini'
'Curticia belongs to Curticiidae'
'Curticiidae belongs to Acrotretoidea'
'Cyclantharia is a misspelling of Cyclacantharia'
'Cyclacantharia belongs to Cyclacanthariinae'
'Cyclacanthariidae belongs to Richthofenioidea'
'Cyclacanthariinae belongs to Cyclacanthariidae'
'Cycladigera belongs to Linoporellidae'
'Cyclocoelia belongs to Cyclocoeliidae'
'Cyclocoeliidae belongs to Plectorthoidea'
'Cyclomyonia belongs to Paurorthidae'
'Cymbistropheodonta is a subjective synonym of Strophodonta'
'Cymbithyris belongs to Billingsellidae'
'Cymbricia belongs to Bohemiellidae'
'Cymoproductus belongs to Paramarginiferini'
'Cymostrophia belongs to Protodouvillininae'
'Cyndalia belongs to Gemmellaroiidae'
'Cyphomena is a subjective synonym of Dactylogonia'
'Cyphomena (Cyphomenoidea) is reassigned into Bellimurina'
'Cyphotalosia belongs to Quadratiinae'
'Cyrbasiotreta belongs to Siphonotretidae'
'Cyrtalosia belongs to Incisiini'
'Cyrtoniscus is a subjective synonym of Plicanoplia'
'Cyrtonotella belongs to Nanorthidae'
'Cyrtonotreta belongs to Acrotretidae'
'Dactylogonia belongs to Furcitellinae'
'Dactylogonia blyskavensis belongs to Dactylogonia'
'Dactylotreta belongs to Acrotretidae'
'Dagnachonetes belongs to Dagnachonetinae'
'Dagnachonetinae belongs to Chonetidae'
'Dalejina belongs to Rhipidomellinae'
'Dalejodiscus was reranked as Plectodonta (Dalejodiscus) and belongs to Plectodonta'
'Dalinuria belongs to Costispiniferini'
'Dalmanella belongs to Dalmanellinae'
'Dalmanellidae belongs to Dalmanelloidea'
'Dalmanellidina belongs to Orthida'
'Dalmanellinae belongs to Dalmanellidae'
'Dalmanelloidea belongs to Dalmanellidina'
'Dalmanellopsis belongs to Draboviinae'
'Danocrania belongs to Craniidae'
'Dasyalosia belongs to Dasyalosiinae'
'Dasyalosiinae belongs to Strophalosiidae'
'Dasysaria belongs to Dictyoclostinae'
'Datangia belongs to Gigantoproductini'
'Daviesiella belongs to Daviesiellidae'
'Daviesiellidae belongs to Chonetoidea'
'Davoustia belongs to Eodevonariidae'
'Dawsonelloides belongs to Strophochonetinae'
'Dearbornia is a subjective synonym of Acrothele'
'Dedzetina belongs to Resserellinae'
'Delepinea belongs to Delepineinae'
'Delepineinae belongs to Rugosochonetidae'
'Demonedys belongs to Anopliinae'
'Dengalosia belongs to Chonopectidae'
'Densepustula belongs to Juresaniini'
'Derbyella belongs to Scacchinellinae'
'Derbyia belongs to Derbyiidae'
'Derbyiidae belongs to Orthotetoidea'
'Derbyoides belongs to Orthotetidae'
'Desistrophia belongs to Mesodouvillininae'
'Desmoinesia belongs to Breileeniini'
'Desmorthis belongs to Plectorthidae'
'Devonalosia belongs to Donalosiinae'
'Devonamphistrophia belongs to Amphistrophiinae'
'Devonaria belongs to Caenanopliinae'
'Devonochonetes belongs to Devonochonetinae'
'Devonochonetinae belongs to Chonetidae'
'Devonoproductinae belongs to Monticuliferidae'
'Devonoproductus belongs to Devonoproductinae'
'Diambonia is a subjective synonym of Leangella'
'Diambonioidea belongs to Grorudiidae'
'Diandongia belongs to Botsfordiidae'
'Diaphragmus belongs to Productini'
'Dicellomus belongs to Obolinae'
'Diceromyonia belongs to Platyorthidae'
'Dichacaenia belongs to Donalosiinae'
'Dicoelosia belongs to Dicoelosiidae'
'Dicoelosiidae belongs to Dalmanelloidea'
'Dicoelostrophia belongs to Dicoelostrophiinae'
'Dicoelostrophiinae belongs to Douvillinidae'
'Dicondylotreta belongs to Acrotretidae'
'Dictyobolus is a subjective synonym of Lamanskya'
'Dictyoclostidae was reranked as the subfamily Dictyoclostinae and belongs to Productidae'
'Dictyoclostoidea belongs to Schrenkiellinae'
'Dictyoclostus belongs to Dictyoclostinae'
'Dictyonella is replaced by Eodictyonella'
'Dictyonellida belongs to Chileata'
'Dictyonina belongs to Paterinidae'
'Dictyonites belongs to Paterinidae'
'Dictyostrophia belongs to Strophodontidae'
'Dicystoconcha belongs to Permianellidae'
'Didymoparcium belongs to Tyronellidae'
'Dignomia belongs to Linguloidea'
'Dinobolus belongs to Trimerellidae'
'Dinorthis belongs to Plaesiomyinae'
'Dinorthis (Pionorthis) was reranked as Pionorthis and belongs to Plaesiomyinae'
'Dinorthis (Retrorsirostra) was reranked as Retrorsirostra and belongs to Plaesiomyinae'
'Diochthofera belongs to Orthidae'
'Diorthelasma belongs to Draboviinae'
'Diparelasma belongs to Finkelnburgiidae'
'Diplanus belongs to Derbyiidae'
'Miniplanus is a subjective synonym of Streptopomum'
'Diplonorthis belongs to Nanorthidae'
'Dipunctella is a subjective synonym of Dicystoconcha'
'Diraphora belongs to Bohemiellidae'
'Discina belongs to Disciniidae'
'Discinacea is corrected as Discinoidea and belongs to Lingulida'
'Discinidae belongs to Discinoidea'
'Discinisca belongs to Disciniidae'
'Discinisca (Discradisca) was reranked as Discradisca and belongs to Discinidae'
'Discinopsis belongs to Craniopsidae'
'Discomyorthis belongs to Rhipidomellinae'
'Discotreta belongs to Conodiscinae'
'Ditreta belongs to Acrotretidae'
'Doleroides belongs to Plectorthidae'
'Dolerorthis belongs to Hesperorthidae'
'Dolichomocelypha belongs to Problematica'
'Donalosia belongs to Donalosiinae'
'Donalosiinae belongs to Araksalosiidae'
'Dorashamia belongs to Costispiniferini'
'Dorsirugatia belongs to Productinini'
'Dorsoscyphus belongs to Derbyiidae'
'Douvillina belongs to Douvillininae'
'Douvillinaria belongs to Douvillininae'
'Douvillinella belongs to Protodouvillininae'
'Douvillinidae belongs to Strophomenoidea'
'Douvillininae belongs to Douvillinidae'
'Douvillinoides belongs to Douvillininae'
'Douvinella belongs to Strophomenoidea'
'Dowhatania belongs to Productini'
'Drabodiscina belongs to Trematidae'
'Drabovia belongs to Draboviinae'
'Draboviidae belongs to Enteletoidea'
'Draboviinae belongs to Draboviidae'
'Drabovinella belongs to Draboviinae'
'Drahanorhynchus belongs to Streptorhynchinae'
'Drahanostrophia belongs to Adectorhynchinae'
'Drummuckina belongs to Strophomeninae'
'Duartea belongs to Yakovleviini'
'Dubioleptina belongs to Sowerbyellinae'
'Dulankarella belongs to Leptellininae'
'Dyoros belongs to Svalbardiinae'
'Dyoros (Tetragonetes) belongs to Dyoros'
'Dyschrestia belongs to Costispiniferini'
'Dysoristidae belongs to Linguloidea'
'Dysoristus belongs to Dysoristidae'
'Dysprosorthis belongs to Chrustenoporidae'
'Dzhebaglina belongs to Furcitellinae'
'Eccentricosta belongs to Parachonetinae'
'Echinalosia belongs to Dasyalosiinae'
'Echinalosia (Notolosia) was reranked as Notolosia and belongs to Dasyalosiinae'
'Echinaria belongs to Echinoconchini'
'Echinariella is a misspelling of Echinauriella'
'Echinauriella belongs to Costispiniferini'
'Echinauris belongs to Costispiniferini'
'Echinoconchella belongs to Karavankinini'
'Echinoconchidae belongs to Echinoconchoidea'
'Echinoconchinae belongs to Echinoconchidae'
'Echinoconchini belongs to Echinoconchinae'
'Echinoconchoidea belongs to Productidina'
'Echinoconchus belongs to Echinoconchini'
'Echinosteges belongs to Echinosteginae'
'Echinosteginae belongs to Aulostegidae'
'Ectenoglossa belongs to Glossellinae'
'Edreja belongs to Botsfordiidae'
'Edriosteges belongs to Echinosteginae'
'Edriosteginae belongs to Aulostegidae'
'Eichwaldia belongs to Eichwaldiidae'
'Eichwaldiidae belongs to Eichwaldioidea'
'Eichwaldioidea belongs to Dictyonellida'
'Eilotreta is a subjective synonym of Onychotreta'
'Elasmothyris belongs to Linoporellidae'
'Elegesta belongs to Proschizophoriidae'
'Elkania belongs to Elkaniidae'
'Elkaniidae belongs to Linguloidea'
'Elkanisca belongs to Elkaniidae'
'Elliottella belongs to Paucispiniferini'
'Elliptoglossa belongs to Elliptoglossinae'
'Elliptoglossinae belongs to Obolidae'
'Elliptostrophia is a subjective synonym of Rugoleptaena'
'Engenella is a subjective synonym of Hesperonomiella'
'Enigmalosia belongs to Donalosiinae'
'Entacanthadus belongs to Marginiferini'
'Enteletella belongs to Enteletidae'
'Enteletes belongs to Enteletidae'
'Enteletidae belongs to Enteletoidea'
'Enteletina belongs to Enteletidae'
'Enteletoidea belongs to Dalmanellidina'
'Enteletoides belongs to Schizophoriidae'
'Eoamphistrophia belongs to Amphistrophiinae'
'Eochonetes belongs to Sowerbyellinae'
'Eoconcha belongs to Nisusiidae'
'Eoconulidae belongs to Acrotretoidea'
'Eoconulus belongs to Eoconulidae'
'Eocramatia belongs to Eocramatiidae'
'Eodalmanella belongs to Ranorthidae'
'Eodevonaria belongs to Eodevonariidae'
'Eodevonariidae belongs to Chonetoidea'
'Eodictyonella belongs to Eichwaldiidae'
'Eodinobolus belongs to Trimerellidae'
'Eodiorthelasma belongs to Draboviinae'
'Eolissochonetes belongs to Svalbardiinae'
'Eolyttonia belongs to Lyttoniinae'
'Eomaoristrophia belongs to Mesodouvillininae'
'Eomarginifera belongs to Kozlowskiini'
'Eomarginiferina belongs to Paramarginiferini'
'Eoobolidae belongs to Linguloidea'
'Eoobolus belongs to Eoobolidae'
'Eoorthidae belongs to Plectorthoidea'
'Eoorthis belongs to Eoorthidae'
'Eopholidostrophia belongs to Eopholidostrophiidae'
'Eopholidostrophiidae belongs to Strophomenoidea'
'Eoplectodonta belongs to Sowerbyellinae'
'Eoplectodonta (Ygerodiscus) belongs to Eoplectodonta'
'Eoplicanoplia belongs to Protochonetinae'
'Eoproductella belongs to Eoproductellinae'
'Eoproductellinae belongs to Monticuliferidae'
'Eorhipidomella belongs to Platyorthidae'
'Eoscaphelasma belongs to Scaphelasmatidae'
'Eoschuchertella belongs to Adectorhynchinae'
'Eosericoidea is a subjective synonym of Leptella'
'Eosiphonotreta belongs to Siphonotretidae'
'Eosophragmophora belongs to Prokopiinae'
'Eosotrematorthis belongs to Billingsellidae'
'Eostrophalosia belongs to Donalosiinae'
'Eostropheodonta belongs to Leptostrophiidae'
'Eostrophonella belongs to Strophonellidae'
'Eothele belongs to Acrothelinae'
'Ephippelasma belongs to Ephippelasmatidae'
'Ephippelasmatidae belongs to Acrotretoidea'
'Epicelia belongs to Epiceliinae'
'Epiceliinae belongs to Cooperinidae'
'Epitomyonia belongs to Dicoelosiidae'
'Eremotoechia belongs to Polytoechiidae'
'Eremotrema belongs to Dalmanellinae'
'Ericiatia belongs to Bagrasiini'
'Eridorthis belongs to Glyptorthidae'
'Erinostrophia belongs to Leptostrophiidae'
'Eripnifera belongs to Rhactorthidae'
'Erismatina is a subjective synonym of Tropidelasma'
'Esilia belongs to Strophomeninae'
'Estlandia belongs to Gonambonitidae'
'Etheridgina belongs to Pustulinae'
'Etherilosia belongs to Strophalosiinae'
'Euorthisina belongs to Euorthisinidae'
'Euorthisinidae belongs to Plectorthoidea'
'Eurytreta belongs to Acrotretidae'
'Evenkina belongs to Evenkininae'
'Evenkininae belongs to Plaesiomyidae'
'Evenkinorthis is a subjective synonym of Nanorthis'
'Expellobolus belongs to Obolinae'
'Experilingula belongs to Obolinae'
'Falafer belongs to Cooperininae'
'Fallaxoproductus belongs to Compressoproductinae'
'Famatinorthis belongs to Giraldiellidae'
'Fanichonetes belongs to Rugosochonetinae'
'Fardenia belongs to Chilidiopsinae'
'Fardeniinae is a subjective synonym of Chilidiopsinae'
'Fascicoma belongs to Acrotretidae'
'Fascicostella belongs to Resserellinae'
'Fasciculina belongs to Finkelnburgiidae'
'Fascifera belongs to Draboviinae'
'Fascistropheodonta belongs to Strophodontidae'
'Fascizetina belongs to Resserellinae'
'Fengzuella belongs to Trimerellidae'
'Fengzuella zhejiangensis belongs to Fengzuella' according to Li and Han 1980
'Ferganoproductus belongs to Plicatiferini'
'Ferrax belongs to Productorthinae'
'Ferrobolus belongs to Dysoristidae'
'Fezzanoglossa belongs to Glossellinae'
'Fezzanoglossa fezzanica belongs to Fezzanoglossa' according to Havlíček and Massa 1973
'Ffynnonia belongs to Platystrophiidae'
'Fibulistrophia is a subjective synonym of Douvillinella'
'Filiconcha belongs to Auriculispininae'
'Fimbriaria is replaced by Fimbrinia'
'Fimbrinia belongs to Overtoniini'
'Finkelnburgiidae belongs to Plectorthoidea'
'Fistulogonites belongs to Clitambonitidae'
'Flabellitesia belongs to Hesperorthidae'
'Flexaria belongs to Buxtoniini'
'Floweria belongs to Adectorhynchinae'
'Fluctuaria belongs to Linoproductinae'
'Foliomena belongs to Foliomenidae'
'Foveola belongs to Obolinae'
'Frankiella belongs to Dagnachonetinae'
'Fulcriphoria belongs to Proschizophoriidae'
'Furcitella belongs to Furcitellinae'
'Furcitellinae belongs to Strophomenidae'
'Fusichonetes belongs to Rugosochonetinae'
'Fusiproductus belongs to Anidanthinae'
'Gacella belongs to Gacellinae'
'Gacellinae belongs to Chilidiopsidae'
'Galateastrophia belongs to Strophodontidae'
'Galeatella belongs to Leioproductini'
'Gamonetes is an objective synonym of Pleurochonetes'
'Gamphalosia belongs to Leptostrophiidae'
'Gasconsia belongs to Trimerellidae'
'Gatia belongs to Anopliinae'
'Gegenella is a subjective synonym of Meekella'
'Gelidorthina belongs to Giraldiellidae'
'Gelidorthis belongs to Giraldiellidae'
'Gemmellaroia belongs to Gemmellaroiidae'
'Gemmellaroiella is a subjective synonym of Gemmellaroia'
'Gemmellaroiidae belongs to Richthofenioidea'
'Gemmulicosta is a subjective synonym of Buxtonioides'
'Geniculifera belongs to Levitusini'
'Geniculina belongs to Furcitellinae'
'Geniculomclearnites was reranked as Mclearnites (Geniculomclearnites) and belongs to Mclearnites'
'Geyerella belongs to Meekellinae'
'Gibberostrophia belongs to Leptostrophiidae'
'Gibbochonetes belongs to Delepineinae'
'Gigantoproductinae belongs to Monticuliferidae'
'Gigantoproductini belongs to Gigantoproductinae'
'Gigantoproductus belongs to Gigantoproductini'
'Giraldiella belongs to Giraldiellidae'
'Giraldiellidae belongs to Plectorthoidea'
'Glabrichonetina belongs to Anopliinae'
'Gladiostrophia belongs to Mesodouvillininae'
'Glaphyrorthis belongs to Eoorthidae'
'Glaphyorthis is a misspelling of Glaphyrorthis'
'Globiella belongs to Auriculispininae'
'Globosobucina belongs to Richthofeniidae'
'Globosochonetes belongs to Caenanopliinae'
'Globosoproductus belongs to Gigantoproductini'
'Glossella belongs to Glossellinae'
'Glossellinae belongs to Obolidae'
'Glossoleptaena belongs to Leptaeninae'
'Glossorthinae belongs to Productorthidae'
'Glossorthis belongs to Glossorthinae'
'Glottidia belongs to Lingulidae'
'Glyptacrothele is a subjective synonym of Acrothele'
'Glyptambonites belongs to Palaeostrophomeninae'
'Glyptias belongs to Botsfordiidae'
'Glyptoglossella belongs to Glossellinae'
'Glyptomena belongs to Glyptomeninae'
'Glyptomenidae belongs to Strophomenoidea'
'Glyptomeninae belongs to Glyptomenidae'
'Glyptoria belongs to Protorthidae'
'Glyptorthinae was reranked as the family Glyptorthidae and belongs to Orthoidea'
'Glyptorthis belongs to Glyptorthidae'
'Glyptosteges belongs to Institellinae'
'Gonambonites belongs to Gonambonitidae'
'Gonambonitidae belongs to Clitambonitoidea'
'Gondolina belongs to Gondolininae'
'Gondolininae belongs to Aulostegidae'
'Goniarina belongs to Schuchertellinae'
'Goniotrema belongs to Palaeostrophomeninae'
'Gorgostrophia belongs to Strophodontidae'
'Gorjanskya belongs to Obolinae'
'Grammoplecia belongs to Triplesiidae'
'Grandaurispina belongs to Grandaurispininae'
'Grandaurispininae belongs to Linoproductidae'
'Grandiproductella belongs to Leioproductini'
'Gratiosina is an objective synonym of Transennatia'
'Grorudia belongs to Grorudiidae'
'Grorudiidae belongs to Plectambonitoidea'
'Grumantia is a subjective synonym of Arctitreta'
'Guangdongina is a subjective synonym of Dicystoconcha'
'Guangjiayanella is a subjective synonym of Dicystoconcha'
'Gubleria is a subjective synonym of Leptodus'
'Guistrophia belongs to Adectorhynchinae'
'Guizhouella is an objective synonym of Kueichowella'
'Gunnarella belongs to Strophomenoidea'
'Gunningblandella belongs to Sowerbyellinae'
'Guttasella belongs to Ahtiellinae'
'Gyroselenella belongs to Trimerellidae'
'Hadrotreta belongs to Acrotretidae'
'Hallinetes belongs to Devonochonetinae'
'Hanaeproductus is a subjective synonym of Striatoproductella'
'Hansotreta belongs to Acrotretidae'
'Harknessella belongs to Harknessellidae'
'Harknessellidae belongs to Dalmanelloidea'
'Harringtonina is a subjective synonym of Anabaia'
'Haupiria belongs to Kutorginidae'
'Haydenoides is a subjective synonym of Spinomarginifera'
'Hebertella belongs to Plectorthidae'
'Hedstroemina belongs to Rafinesquininae'
'Helaspis belongs to Productellinae'
'Helenaeproductus is a subjective synonym of Magniplicatina'
'Helenaeproductus khubsugulensis is recombined as Magniplicatina khubsugulensis'
'Heliomedusa belongs to Craniopsidae'
'Helmersenia belongs to Siphonotretidae'
'Hemichonetes belongs to Plicochonetinae'
'Hemichonetes is an objective synonym of Chlupacina'
'Hemipronites belongs to Clitambonitidae'
'Heosomocelypha belongs to Problematica'
'Hercosestria belongs to Hercosiidae'
'Hercosia belongs to Hercosiidae'
'Hercosiidae belongs to Richthofenioidea'
'Hercostrophia belongs to Protodouvillininae'
'Hesperinia belongs to Glyptomeninae'
'Hesperomena belongs to Hesperomenidae'
'Hesperomenidae belongs to Plectambonitoidea'
'Hesperonomia belongs to Hesperonomiidae'
'Hesperonomiella belongs to Hesperonomiidae'
'Hesperonomiidae belongs to Orthoidea'
'Hesperorthidae belongs to Orthoidea'
'Hesperorthis belongs to Hesperorthidae'
'Heteralosia belongs to Strophalosiinae'
'Heteralosiinae is a subjective synonym of Strophalosiinae'
'Heterorthella belongs to Heterorthidae'
'Heterorthidae belongs to Dalmanelloidea'
'Heterorthina belongs to Heterorthidae'
'Heterorthis belongs to Heterorthidae'
'Hibernodonta belongs to Rafinesquininae'
'Hinganella is a subjective synonym of Iridistrophia'
'Hingganoleptaena belongs to Leptaeninae'
'Hipparionix belongs to Chilidiopsinae'
'Hipparionyx is a misspelling of Hipparionix'
'Hirnantia belongs to Draboviinae'
'Hisingerella belongs to Acrotretidae'
'Hollardina belongs to Leptaeninae'
'Holotricharina belongs to Grandaurispininae'
'Holtedahlina belongs to Strophomeninae'
'Holynetes belongs to Holynetinae'
'Holynetinae belongs to Anopliidae'
'Homotreta belongs to Acrotretidae'
'Hontorialosia belongs to Dasyalosiinae'
'Horderleyella belongs to Harknessellidae'
'Horridonia belongs to Horridoniini'
'Horridoniini belongs to Leioproductinae'
'Howseia belongs to Echinosteginae'
'Huananochonetes belongs to Devonochonetinae'
'Huatangia belongs to Paramarginiferini'
'Hubeiproductus is a subjective synonym of Productus'
'Humaella is a subjective synonym of Akelina'
'Hunanoproductus belongs to Leioproductini'
'Hyperobolus belongs to Zhanatellidae'
'Hypolinoproductus is a subjective synonym of Dictyoclostoidea'
'Hypopsia belongs to Orthotetellidae'
'Hypselonetes belongs to Protochonetinae'
'Hypsomoniidae belongs to Dalmanelloidea'
'Hypsomyonia belongs to Hypsomoniidae'
'Hystriculina belongs to Paucispiniferini'
'Idioglyptus belongs to Strophomenoidea'
'Idiorthis belongs to Proschizophoriidae'
'Impiacus belongs to Levipustulini'
'Incisiini belongs to Marginiferinae'
'Incisius belongs to Incisiini'
'Incorthis belongs to Heterorthidae'
'Indigia is a subjective synonym of Schrenkiella'
'Inflatia belongs to Yakovleviini'
'Infurca belongs to Strophomeninae'
'Ingria belongs to Plectambonitinae'
'Iniproductus belongs to Rugaurini'
'Institella belongs to Institellinae'
'Institellinae belongs to Aulostegidae'
'Institifera belongs to Institiferini'
'Institiferini belongs to Overtoniinae'
'Institina belongs to Institellinae'
'Inversella belongs to Ahtiellinae'
'Iphidella is a subjective synonym of Micromitra'
'Irboskites belongs to Donalosiinae'
'Irhirea belongs to Plectorthidae'
'Iridistrophia belongs to Chilidiopsinae'
'Ishimia belongs to Palaeostrophomeninae'
'Isochonetes belongs to Rugosochonetinae'
'Isocrania belongs to Craniidae'
'Isogramma belongs to Isogrammidae'
'Isogrammidae belongs to Eichwaldioidea'
'Isophragma belongs to Taphrodontinae'
'Isorthidae is replaced by Isorthinae'
'Isorthinae belongs to Dalmanellidae'
'Isorthis belongs to Isorthinae'
'Israelaria belongs to Protorthidae'
'Issedonia belongs to Torynelasmatidae'
'Ivshinella belongs to Obolellidae'
'Jaanussonites belongs to Gonambonitidae'
'Jakutella belongs to Sentosiini'
'Jakutochonetes belongs to Rugosochonetinae'
'Jakutoproductus belongs to Levipustulini'
'Jakutostrophia belongs to Mesodouvillininae'
'Jevinellina is a subjective synonym of Jivinella'
'Jezercia belongs to Chrustenoporidae'
'Jercia is a misspelling of Jezercia'
'Jielingia is a subjective synonym of Foliomena'
'Jiguliconcha belongs to Paucispiniferini'
'Jipuproductus belongs to Marginiferini'
'Jivinella belongs to Eoorthidae'
'Johnsonetes belongs to Strophochonetinae'
'Jonesea belongs to Aegiromeninae'
'Juresania belongs to Juresaniini'
'Juresaniinae belongs to Echinoconchidae'
'Juresaniini belongs to Juresaniinae'
'Juxoldhamina is a subjective synonym of Leptodus'
'Kadraliproductus belongs to Levitusini'
'Kajnaria belongs to Leptellininae'
'Kampella belongs to Harknessellidae'
'Kansuella belongs to Gigantoproductini'
'Karathele belongs to Botsfordiidae'
'Karavankina belongs to Karavankinini'
'Karavankinini belongs to Echinoconchinae'
'Karlicium belongs to Resserellinae'
'Karnotreta belongs to Siphonotretidae'
'Kasetia belongs to Linoproductinae'
'Kassinella belongs to Hesperomenidae'
'Katastrophomena belongs to Furcitellinae'
'Kavesia belongs to Leioproductini'
'Kayserella belongs to Kayserellidae'
'Kayserellidae belongs to Dalmanelloidea'
'Kelamelia belongs to Retariini'
'Kentronetes belongs to Strophochonetinae'
'Keokukia belongs to Retariini'
'Keyserlingia belongs to Ceratretidae'
'Keyserlingina belongs to Lyttoniinae'
'Khangaestrophia belongs to Strophodontidae'
'Khasagtina belongs to Nisusiidae'
'Khasaghia is a misspelling of Khasagtina'
'Kiaeromena belongs to Leptaeninae'
'Kiangsiella belongs to Streptorhynchinae'
'Kinelina is a subjective synonym of Telaeoshaleria'
'Kinnella belongs to Draboviinae'
'Kirkina belongs to Furcitellinae'
'Kjaerina belongs to Rafinesquininae'
'Kjerulfina belongs to Rafinesquininae'
'Kleithriatreta belongs to Ceratretidae'
'Kochiproductus belongs to Buxtoniini'
'Kolihium belongs to Paterinidae'
'Komiella belongs to Svalbardiinae'
'Komukia belongs to Rugosochonetinae'
'Kosoidea belongs to Disciniidae'
'Kotujella belongs to Matutellidae'
'Kotujella calva belongs to Kotujella' according to Andreeva 1962
'Kotujella calva belongs to Kotujella'
'Kotujotreta is a subjective synonym of Longipegma'
'Kotujotreta memorabilis belongs to Kotujotreta' according to Ushatinskaya 1994
'Kotujotreta memorabilis is recombined as Longipegma memorabilis'
'Kotylotreta belongs to Acrotretidae'
'Kozhuchinella belongs to Billingsellidae'
'Kozlowskia belongs to Kozlowskiini'
'Kozlowskiini belongs to Productinae'
'Kozlowskites was reranked as Eoplectodonta (Kozlowskites) and belongs to Eoplectodonta'
'Krejcigrafella was reranked as Schuchertellopsis (Krejcigrafella) and belongs to Schuchertellopsis'
'Krizistrophia is a subjective synonym of Coolinia'
'Krotovia belongs to Krotoviini'
'Krotoviini belongs to Overtoniinae'
'Kueichowella belongs to Gigantoproductini'
'Kullervo belongs to Gonambonitidae'
'Kunlunia belongs to Dictyoclostinae'
'Kurnamena is a subjective synonym of Leptaena'
'Kurtomarginifera is a subjective synonym of Transennatia'
'Kutorgina belongs to Kutorginidae'
'Kutorginacea is corrected as Kutorginoidea and belongs to Kutorginida'
'Kutorginella belongs to Retariini'
'Kutorginida belongs to Kutorginata'
'Kutorginidae belongs to Kutorginoidea'
'Kuvelousia belongs to Anidanthinae'
'Kyrshabaktella belongs to Obolinae'
'Labriproductus belongs to Buxtoniini'
'Lachrymula belongs to Glossellinae'
'Lacunarites belongs to Clitambonitidae'
'Lacunites belongs to Paterinidae'
'Laevicyphomena belongs to Furcitellinae'
'Laima belongs to Linguloidea'
'Lamanskya belongs to Elkaniidae'
'Lamellodonta is a subjective synonym of Trematobolus'
'Lamellosia belongs to Lamellosiinae'
'Lamellosiinae belongs to Rugosochonetidae'
'Laminatia belongs to Sentosiini'
'Lamiproductus is a subjective synonym of Pseudohaydenella'
'Lamnimargus belongs to Paucispiniferini'
'Lampangella belongs to Paucispiniferini'
'Langella belongs to Lingulidae'
'Lanipustula belongs to Levipustulini'
'Laterispina belongs to Permianellidae'
'Laticrura belongs to Linoporellidae'
'Latiproductus belongs to Semiplanini'
'Leangella belongs to Leptestiidae'
'Lebediorthis is a nomen dubium'
'Leiochonetes belongs to Svalbardiinae'
'Leioproductinae belongs to Productidae'
'Leioproductini belongs to Leioproductinae'
'Leioproductus belongs to Leioproductini'
'Leioria belongs to Leioriidae'
'Leioriidae belongs to Protorthoidea'
'Leontiella belongs to Obolinae'
'Lepidocrania belongs to Craniidae'
'Lepidoleptaena belongs to Leptaeninae'
'Lepidomena belongs to Palaeostrophomeninae'
'Lepidorthis belongs to Glyptorthidae'
'Leptaena belongs to Leptaeninae'
'Leptaena taxilla belongs to Leptaena' according to Oraspold 1965
'Leptaena taxilla belongs to Leptaena'
'Leptaena taxilla is recombined as Kurnamena taxilla' according to Roomusoks 1989
'Leptaenidae is replaced by Leptaeninae'
'Leptaeninae belongs to Rafinesquinidae'
'Leptaenisca belongs to Leptaenoideidae'
'Leptaenoidea belongs to Leptaenoideidae'
'Leptaenoideidae belongs to Strophomenoidea'
'Leptaenomendax belongs to Leptaenoideidae'
'Leptaenopoma is a subjective synonym of Leptaena'
'Leptaenopyxis belongs to Leptaeninae'
'Leptagonia belongs to Leptaeninae'
'Leptalosia belongs to Strophalosiinae'
'Leptella belongs to Leptellinae'
'Leptellina belongs to Leptellininae'
'Leptellinae belongs to Taffiidae'
'Leptellinidae belongs to Plectambonitoidea'
'Leptellininae belongs to Leptellinidae'
'Leptelloidea belongs to Leptellininae'
'Leptembolon belongs to Obolinae'
'Leptestia belongs to Leptestiidae'
'Leptestiidae belongs to Plectambonitoidea'
'Leptestiina was reranked as Leangella (Leptestiina) and belongs to Leangella'
'Leptobolus belongs to Glossellinae'
'Leptochonetes belongs to Strophochonetinae'
'Leptodonta belongs to Strophodontidae'
'Leptodontella belongs to Leptodontellinae'
'Leptodontellinae belongs to Douvillinidae'
'Leptodus belongs to Lyttoniinae'
'Leptoskelidion belongs to Linoporellidae'
'Leptostrophia belongs to Leptostrophiidae'
'Leptostrophiella is a subjective synonym of Mesoleptostrophia'
'Leptostrophiidae belongs to Strophomenoidea'
'Lercarella belongs to Monticuliferidae'
'Lethamia belongs to Costispiniferini'
'Leurosina belongs to Svalbardiinae'
'Levenea belongs to Isorthinae'
'Levipustula belongs to Levipustulini'
'Levipustulini belongs to Plicatiferinae'
'Levitusia belongs to Levitusini'
'Levitusini belongs to Plicatiferinae'
'Lialosia belongs to Strophalosiinae'
'Libyaeglossa belongs to Glossellinae'
'Libyaeglossa collombi belongs to Libyaeglossa' according to Havlíček and Massa 1973
'Libys belongs to Tolmatchoffiini'
'Licharewiella belongs to Strophalosiinae'
'Liljevallia belongs to Leptaenoideidae'
'Limbella belongs to Echinosteginae'
'Limbifera belongs to Semicostellini'
'Limbimurina belongs to Leptaeninae'
'Lindinella belongs to Obolinae'
'Lindstroemella belongs to Disciniidae'
'Lingula belongs to Lingulidae'
'Lingula pinnaformis is recombined as Lingulepis pinnaformis'
'Lingulacea is replaced by Linguloidea'
'Lingulapholis belongs to Craniopsidae'
'Lingularia belongs to Lingulidae'
'Lingulasma belongs to Lingulasmatidae'
'Lingulasmatidae belongs to Linguloidea'
'Lingulata belongs to Linguliformea'
'Lingulella belongs to Obolinae'
'Lingulellotreta belongs to Lingulellotretidae'
'Lingulellotretidae belongs to Linguloidea'
'Lingulepis belongs to Obolinae'
'Lingulida belongs to Lingulata'
'Lingulidae belongs to Linguloidea'
'Lingulipora belongs to Linguloidea'
'Lingulobolus belongs to Obolinae'
'Lingulodiscina belongs to Disciniidae'
'Linguloidea belongs to Lingulida'
'Lingulops belongs to Elliptoglossinae'
'Linnarssonella belongs to Acrotretidae'
'Linnarssonella modesta is recombined as Tropidoglossa modesta' according to Rowell 1966
'Linnarssonia belongs to Acrotretidae'
'Linoporella belongs to Linoporellidae'
'Linoporellidae belongs to Enteletoidea'
'Linoproductidae belongs to Linoproductoidea'
'Linoproductinae belongs to Linoproductidae'
'Linoproductoidea belongs to Productidina'
'Linoprotonia belongs to Auriculispininae'
'Linostrophomena belongs to Glyptomeninae'
'Lioleptaena belongs to Leptaeninae'
'Liosotella belongs to Paucispiniferini'
'Lipanteris belongs to Aulosteginae'
'Liraplecta belongs to Dictyoclostinae'
'Liraria belongs to Auriculispininae'
'Lissochonetes belongs to Svalbardiinae'
'Lissoleptaena belongs to Leptaeninae'
'Lissomarginifera is a subjective synonym of Eomarginifera'
'Lissostrophia belongs to Strophodontidae'
'Lissotreta is a subjective synonym of Onychotreta'
'Litocothia belongs to Loczyellinae'
'Liveringia belongs to Strophalosiinae'
'Ljaschenkovia is a subjective synonym of Schizobolus'
'Lochkothele belongs to Disciniidae'
'Loczyella belongs to Loczyellinae'
'Loczyellinae belongs to Permianellidae'
'Loganella belongs to Perditocardiniinae'
'Lomatiphora belongs to Semiproductini'
'Lomatorthis belongs to Glyptorthidae'
'Longipegma belongs to Acrotretidae'
'Longispina belongs to Devonochonetinae'
'Longvillia belongs to Strophomeninae'
'Lopasnia belongs to Productini'
'Loperia belongs to Arctohedridae'
'Lopingia is a subjective synonym of Orthothetina'
'Lordorthis belongs to Hesperorthidae'
'Loreleiella belongs to Eodevonariidae'
'Loxophragmus belongs to Lyttoniinae'
'Luanquella belongs to Dagnachonetinae'
'Ludfordina is a subjective synonym of Glossoleptaena'
'Ludfordina pixis is recombined as Glossoleptaena pixis'
'Luhaia belongs to Furcitellinae'
'Luhotreta is a subjective synonym of Vandalotreta'
'Lunoglossa belongs to Linguloidea'
'Lurgiticoma belongs to Ephippelasmatidae'
'Lycophoria belongs to Lycophoriidae'
'Lycophoriidae belongs to Orthoidea'
'Lyonia belongs to Grandaurispininae'
'Lyttonia is a subjective synonym of Leptodus'
'Lyttoniidae belongs to Lyttonioidea'
'Lyttoniidina belongs to Productida'
'Lyttoniinae belongs to Lyttoniidae'
'Lyttonioidea belongs to Lyttoniidina'
'Maakina belongs to Furcitellinae'
'Mabella belongs to Leptellininae'
'Machaerocolella is a subjective synonym of Trimerella'
'Mackerrovia belongs to Leptaeninae'
'Macrocoelia is a subjective synonym of Colaptomena'
'Macrocoelia obesa is recombined as Colaptomena obesa'
'Maemia belongs to Semicostellini'
'Magadania belongs to Auriculispininae'
'Magicostrophia is a subjective synonym of Iridistrophia'
'Magnicanalis belongs to Obolellidae'
'Magniderbyia is a subjective synonym of Licharewiella'
'Magniplicatina belongs to Auriculispininae'
'Magniventra is a subjective synonym of Leptostrophia'
'Magnumbonella belongs to Leioproductini'
'Malayanoplia belongs to Holynetinae'
'Malinella is a nomen dubium'
'Malloproductus belongs to Sentosiini'
'Malurostrophia belongs to Protodouvillininae'
'Mamatia belongs to Ephippelasmatidae'
'Mamutinetes belongs to Dagnachonetinae'
'Mansina belongs to Furcitellinae'
'Maoristrophia belongs to Mesodouvillininae'
'Mapingtichia belongs to Enteletidae'
'Marcharella is a subjective synonym of Finkelnburgia'
'Margaritiproductus belongs to Semiproductini'
'Marginalosia belongs to Dasyalosiinae'
'Marginatia belongs to Tolmatchoffiini'
'Marginicinctus belongs to Buxtoniini'
'Marginifera belongs to Marginiferini'
'Marginifera (Otariella) was reranked as Otariella and belongs to Marginiferini'
'Marginiferinae belongs to Productellidae'
'Marginiferini belongs to Marginiferinae'
'Marginirugus belongs to Productini'
'Marginoproductus belongs to Retariini'
'Marginorthis belongs to Whittardiidae'
'Marginovatia belongs to Linoproductinae'
'Marionites belongs to Heterorthidae'
'Markamia belongs to Sentosiini'
'Marklandella belongs to Platyorthidae'
'Martellia belongs to Polytoechiidae'
'Matanoleptodus belongs to Lyttoniinae'
'Matutella belongs to Matutellidae'
'Matutellidae belongs to Matutelloidea'
'Matutelloidea belongs to Chileida'
'Mcewanella belongs to Platystrophiidae'
'Mclearnites belongs to Mesodouvillininae'
'Mclearnitesella is a subjective synonym of Mclearnites'
'Medessia belongs to Anomalorthidae'
'Meekella belongs to Meekellinae'
'Meekellidae belongs to Orthotetoidea'
'Meekellinae belongs to Meekellidae'
'Megachonetes belongs to Delepineinae'
'Megalosia belongs to Strophalosiinae'
'Megamyonia belongs to Rafinesquininae'
'Megapleuronia belongs to Isogrammidae'
'Megasalopina belongs to Draboviinae'
'Megaspinochonetes is an objective synonym of Spinochonetes'
'Megasteges belongs to Aulosteginae'
'Megastrophia belongs to Strophodontidae'
'Megastrophia (Eomegastrophia) was reranked as Eomegastrophia and belongs to Leptostrophiidae'
'Megastrophiella belongs to Protodouvillininae'
'Megatschernyschewia belongs to Tschernyschewiinae'
'Megousia belongs to Anidanthinae'
'Mendacella belongs to Rhipidomellinae'
'Merciella was reranked as Leptellina (Merciella) and belongs to Leptellina'
'Mesodouvillina belongs to Mesodouvillininae'
'Mesodouvillininae belongs to Amphistrophiidae'
'Mesoleptostrophia belongs to Leptostrophiidae'
'Mesolissostrophia is a subjective synonym of Mesopholidostrophia'
'Mesolobus belongs to Capillomesolobinae'
'Mesopholidostrophia belongs to Eopholidostrophiidae'
'Mesoplica belongs to Leioproductini'
'Mesotreta belongs to Siphonotretidae'
'Metorthinae belongs to Plaesiomyidae'
'Metorthis belongs to Metorthinae'
'Mezounia belongs to Aegiromeninae'
'Micraphelia belongs to Undulellinae'
'Micromitra belongs to Paterinidae'
'Microtrypa is a subjective synonym of Trigrammaria'
'Microtrypa altilis belongs to Microtrypa' according to Wilson 1945
'Microtrypa altilis is recombined as Trigrammaria altilis'
'Mimella belongs to Plectorthidae'
'Mingenewia belongs to Mingenewiinae'
'Mingenewiinae belongs to Strophalosiidae'
'Miniprokopia belongs to Prokopiinae'
'Minispina belongs to Kozlowskiini'
'Minutostropheodonta belongs to Strophodontidae'
'Mirilingula belongs to Lingulellotretidae'
'Mirorthis belongs to Dalmanellinae'
'Mistproductus belongs to Linoproductinae'
'Mitchellella is a subjective synonym of Mesoleptostrophia'
'Mjoesina belongs to Glyptomeninae'
'Moderatoproductus is a subjective synonym of Datangia'
'Mogoktella belongs to Anomalorthidae'
'Molongcola belongs to Furcitellinae'
'Molongella belongs to Resserellinae'
'Monelasmiinae belongs to Draboviidae'
'Monelasmina belongs to Monelasmiinae'
'Mongolochonetes belongs to Delepineinae'
'Mongolosia belongs to Ctenalosiinae'
'Monobolina belongs to Elkaniidae'
'Monoconvexa belongs to Obolellida'
'Monomerella belongs to Trimerellidae'
'Monorthis belongs to Hesperonomiidae'
'Monticulifera belongs to Monticuliferinae'
'Monticuliferidae belongs to Linoproductoidea'
'Monticuliferinae belongs to Monticuliferidae'
'Montsenetes belongs to Devonochonetinae'
'Moravostrophia belongs to Protodouvillininae'
'Morganella belongs to Donalosiinae'
'Morinorhynchus belongs to Chilidiopsinae'
'Muirwoodia is a subjective synonym of Yakovlevia'
'Muirwoodia californica is recombined as Yakovlevia californica'
'Multicostella belongs to Plaesiomyinae'
'Multiridgia belongs to Aegiromeninae'
'Multispinula belongs to Siphonotretidae'
'Munhella is a subjective synonym of Dolerorthis'
'Muriferella belongs to Monelasmiinae'
'Murinella belongs to Furcitellinae'
'Murjukiana belongs to Hesperonomiidae'
'Murrinyinella belongs to Bohemiellidae'
'Mylloconotreta belongs to Torynelasmatidae'
'Myotreta belongs to Ephippelasmatidae'
'Mystrophora belongs to Mystrophoridae'
'Mystrophoridae belongs to Dalmanelloidea'
'Nabarredia belongs to Protochonetinae'
'Nabiaoia belongs to Aegiromeninae'
'Nadiastrophia belongs to Protodouvillininae'
'Nanambonites was reranked as Taphrodonta (Nanambonites) and belongs to Taphrodonta'
'Nanorthidae belongs to Orthoidea'
'Nanorthis belongs to Nanorthidae'
'Narynella belongs to Nisusiidae'
'Naukat belongs to Naukatidae'
'Naukatida belongs to Obolellata'
'Naukatidae belongs to Naukatoidea'
'Naukatoidea belongs to Naukatida'
'Nematocrania belongs to Craniidae'
'Neobolus belongs to Botsfordiidae'
'Neochonetes belongs to Rugosochonetinae'
'Neocrania belongs to Craniidae'
'Neokjaerina is a subjective synonym of Eostropheodonta'
'Neoplicatifera belongs to Costispiniferini'
'Neorichthofenia belongs to Hercosiidae'
'Neoschizophoria belongs to Schizophoriidae'
'Neotremata is replaced by Acrotretida'
'Neotreta belongs to Acrotretidae'
'Neoyanguania is a subjective synonym of Xinshaoproductus'
'Nereidella belongs to Paurorthidae'
'Nervostrophia belongs to Leptostrophiidae'
'Neumanella belongs to Strophodontidae'
'Neumania belongs to Clitambonitidae'
'Nicolella belongs to Productorthinae'
'Nicoloidea belongs to Nanorthidae'
'Nicolorthis belongs to Glossorthinae'
'Nigerinoplica belongs to Semiproductini'
'Nisusia belongs to Nisusiidae'
'Nisusia (Jamesella) was reranked as Jamesella and belongs to Protorthidae'
'Nisusiidae belongs to Nisusioidea'
'Nisusioidea belongs to Kutorginida'
'Niutoushania belongs to Dictyoclostinae'
'Niviconia belongs to Meekellinae'
'Nix is a subjective synonym of Rugosochonetes'
'Nochoroiella belongs to Obolellida'
'Nocturnellia belongs to Draboviinae'
'Nodella is replaced by Malloproductus'
'Nothokuvelousia is a subjective synonym of Kuvelousia'
'Nothopindax belongs to Derbyiidae'
'Nothorthis belongs to Ranorthidae'
'Notiobolus belongs to Obolinae'
'Notiochonetes belongs to Notiochonetinae'
'Notiochonetinae belongs to Chonetidae'
'Notoleptaena belongs to Leptaeninae'
'Notorthisina belongs to Euorthisinidae'
'Notoscaphidia belongs to Finkelnburgiidae'
'Notostrophia belongs to Streptorhynchinae'
'Novellinetes belongs to Strophochonetinae'
'Nubialba belongs to Christianiidae'
'Nucleorhynchia is a subjective synonym of Craigella'
'Nudauris belongs to Paucispiniferini'
'Nudymia is a subjective synonym of Impiacus'
'Nugnecella is a nomen dubium'
'Numericoma belongs to Ephippelasmatidae'
'Nurochonetes belongs to Dagnachonetinae'
'Nushbiella belongs to Siphonotretidae'
'Oandumena is a subjective synonym of Leptaena'
'Obolella belongs to Obolellidae'
'Obolella desiderata is recombined as Billingsia desiderata' according to Ford 1886
'Obolella desiderata is recombined as Elkania desiderata' according to Ford 1886
'Obolella desiderata is recombined as Elkania desiderata'
'Obolellacea is replaced by Obolelloidea'
'Obolellida belongs to Obolellata'
'Obolellidae belongs to Obolelloidea'
'Obolelloidea belongs to Obolellida'
'Obolidae belongs to Linguloidea'
'Obolinae belongs to Obolidae'
'Obolopsis is a subjective synonym of Palaeobolus'
'Obolopsis margaritae is recombined as Palaeobolus margaritae'
'Obolus belongs to Obolinae'
'Obolus (Fordinia) was reranked as Fordinia and belongs to Obolidae'
'Obolus (Fordinia) perfectus is recombined as Fordinia perfecta'
'Ocnerorthis belongs to Eoorthidae'
'Ocorthis is a subjective synonym of Trondorthis'
'Odoratus belongs to Rafinesquininae'
'Oehlertella belongs to Disciniidae'
'Oepikinella is a subjective synonym of Oepikina'
'Oepikites belongs to Obolinae'
'Ogbinia belongs to Chonetellini'
'Oina belongs to Naukatidae'
'Oldhamina belongs to Lyttoniinae'
'Oldhaminella belongs to Lyttoniinae'
'Olentotreta belongs to Acrotretidae'
'Oligomys belongs to Bohemiellidae'
'Oligorhachis is corrected as Oligorachis and belongs to Donalosiinae'
'Oligorthis belongs to Plectorthidae'
'Ombonia belongs to Omboniinae'
'Omboniinae belongs to Meekellidae'
'Onavia belongs to Avoniini'
'Oncosarina belongs to Paucispiniferini'
'Onniella belongs to Dalmanellinae'
'Onnizetina belongs to Dalmanellinae'
'Onopordumaria belongs to Levipustulini'
'Onychoplecia belongs to Triplesiidae'
'Onychotreta belongs to Triplesiidae'
'Opikella is a subjective synonym of Leangella'
'Opikina is corrected as Oepikina and belongs to Furcitellinae'
'Opisthotreta belongs to Acrotretidae'
'Opsiconidion belongs to Biernatidae'
'Opisconidion is a misspelling of Opsiconidion'
'Orbicula is replaced by Neocrania'
'Orbiculoidea belongs to Discinidae'
'Orbiculothyris is a subjective synonym of Schizocrania'
'Orbinaria belongs to Rugaurini'
'Orbithele belongs to Acrothelinae'
'Orhoria is a subjective synonym of Leptaena'
'Orthacea is replaced by Orthoidea'
'Orthambonites belongs to Orthidae'
'Orthida belongs to Rhynchonellata'
'Orthidae belongs to Orthoidea'
'Orthidiella belongs to Orthidiellidae'
'Orthidiellidae belongs to Orthoidea'
'Orthidina belongs to Orthida'
'Orthidium belongs to Orthidiellidae'
'Orthiella belongs to Draboviinae'
'Orthis belongs to Orthidae'
'Orthis (Finkelnburgia) was reranked as Finkelnburgia and belongs to Finkelnburgiidae'
'Orthis (Orusia) was reranked as Orusia and belongs to Finkelnburgiidae'
'Orthis umbella belongs to Orthis' according to Barrande 1848
'Orthis umbella is recombined as Iridistrophia umbella' according to Havlicek 1965
'Orthisina janischewskyi is recombined as Raunites janischewskyi'
'Orthisocrania belongs to Craniidae'
'Orthoidea belongs to Orthidina'
'Orthopleura belongs to Adectorhynchinae'
'Orthostrophella belongs to Orthidae'
'Orthostrophia belongs to Orthidae'
'Orthotetella belongs to Orthotetellidae'
'Orthotetellidae belongs to Orthotetoidea'
'Orthotetes belongs to Orthotetidae'
'Orthotetes magnus belongs to Orthotetes' according to Branson 1930
'Orthotetes magnus is recombined as Plicatoderbya magnus' according to Thomas 1937
'Orthotetes magnus is recombined as Derbyia magnus'
'Orthotetida belongs to Strophomenata'
'Orthotetidae belongs to Orthotetoidea'
'Orthotetidina belongs to Orthotetida'
'Orthotetoidea belongs to Orthotetidina'
'Orthotetoides is a subjective synonym of Orthotetes'
'Orthothetina belongs to Meekellinae'
'Orthothrix belongs to Dasyalosiinae'
'Orthotichia belongs to Schizophoriidae'
'Orthotropia belongs to Linoporellidae'
'Oslogonites belongs to Gonambonitidae'
'Ottadalenites is a nomen dubium'
'Ottenbyella belongs to Acrotretidae'
'Ovatia belongs to Auriculispininae'
'Overtonia belongs to Overtoniini'
'Overtoniina belongs to Semicostellini'
'Overtoniinae belongs to Productellidae'
'Overtoniini belongs to Overtoniinae'
'Ovidiella belongs to Trimerellidae'
'Ovidiella plana belongs to Ovidiella' according to Nikitin and Popov 1984
'Oxlosia belongs to Linguloidea'
'Oxoplecia belongs to Triplesiidae'
'Ozora belongs to Dictyoclostinae'
'Pachyglossella belongs to Glossellinae'
'Paeckelmannia is a subjective synonym of Tornquistia'
'Pahlenella belongs to Clitambonitidae'
'Palaeobolus belongs to Obolinae'
'Palaeoglossa belongs to Obolinae'
'Palaeoldhamina is a subjective synonym of Loxophragmus'
'Palaeoleptostrophia belongs to Leptostrophiidae'
'Palaeoschizophoria belongs to Schizophoriidae'
'Palaeoschmidtites belongs to Obolinae'
'Palaeostrophomena belongs to Palaeostrophomeninae'
'Palaeostrophomeninae belongs to Leptellinidae'
'Palaeotrimerella belongs to Trimerellidae'
'Paldiskites is a subjective synonym of Apatobolus'
'Palmerhytis is a subjective synonym of Semenewia'
'Panderina belongs to Productorthinae'
'Papiliolinus belongs to Auriculispininae'
'Papillostrophia belongs to Strophodontidae'
'Parabuxtonia is a subjective synonym of Dowhatania'
'Parachonetella belongs to Chonetellini'
'Parachonetes belongs to Parachonetinae'
'Parachonetinae belongs to Strophochonetidae'
'Paracraniops belongs to Craniopsidae'
'Parademonedys belongs to Lamellosiinae'
'Paraderbyia is a subjective synonym of Derbyia'
'Paradinobolus belongs to Trimerellidae'
'Paradinobolus sinensis belongs to Paradinobolus' according to Li and Han 1980
'Paradolerorthis belongs to Hesperorthidae'
'Parageyerella is a subjective synonym of Sicelia'
'Parajuresania belongs to Juresaniini'
'Parakansuella is a subjective synonym of Kansuella'
'Paralenorthis belongs to Orthidae'
'Paraleptodus is a subjective synonym of Eolyttonia'
'Paraleptostrophia was reranked as Mesoleptostrophia (Paraleptostrophia) and belongs to Mesoleptostrophia'
'Paralyttonia belongs to Rigbyellidae'
'Paramarginatia is a subjective synonym of Marginatia'
'Paramarginifera belongs to Paramarginiferini'
'Paramarginiferini belongs to Productininae'
'Parameekella is a subjective synonym of Paraorthotetina'
'Paramesolobus belongs to Rugosochonetinae'
'Paramonticulifera belongs to Monticuliferinae'
'Paramuirwoodia is a subjective synonym of Duartea'
'Paranisopleurella is a subjective synonym of Ygerodiscus'
'Paraonychoplecia belongs to Triplesiidae'
'Paraorthotetina belongs to Meekellinae'
'Parapholidostrophia belongs to Strophodontidae'
'Paraplicatifera belongs to Costispiniferini'
'Parapulchratia belongs to Productida'
'Parastrophonella belongs to Leptodontellinae'
'Paratreta belongs to Torynelasmatidae'
'Parenteletes belongs to Enteletidae'
'Parmephrix belongs to Chonopectidae'
'Parmorthina belongs to Resserellinae'
'Parmorthis is a subjective synonym of Resserella'
'Paromalomena belongs to Glyptomeninae'
'Paryphella belongs to Paramarginiferini'
'Paterina belongs to Paterinidae'
'Paterinata belongs to Linguliformea'
'Paterinida belongs to Paterinata'
'Paterinidae belongs to Paterinoidea'
'Paterinoidea belongs to Paterinida'
'Paterorthis belongs to Plectorthidae'
'Paterula belongs to Paterulidae'
'Paterulidae belongs to Linguloidea'
'Paucicostella is a nomen dubium'
'Paucicrura belongs to Dalmanellinae'
'Paucispinauria belongs to Grandaurispininae'
'Paucispinifera belongs to Paucispiniferini'
'Paucispiniferini belongs to Marginiferinae'
'Paucistrophia belongs to Protodouvillininae'
'Paurorthidae belongs to Dalmanelloidea'
'Paurorthis belongs to Paurorthidae'
'Pegmatreta is a subjective synonym of Linnarssonia'
'Peleicostella belongs to Isorthinae'
'Pelonomia belongs to Pelonomiinae'
'Pelonomiinae belongs to Taffiidae'
'Peltichia belongs to Enteletidae'
'Pembrostrophia was reranked as Amphistrophia (Pembrostrophia) and belongs to Amphistrophia'
'Peniculauris belongs to Tolmatchoffiini'
'Pentlandina belongs to Furcitellinae'
'Perditocardinia belongs to Perditocardiniinae'
'Perditocardiniinae belongs to Rhipidomellidae'
'Perichonetes belongs to Strophochonetinae'
'Peridalejina belongs to Rhipidomellinae'
'Perigeyerella belongs to Meekellinae'
'Peritrimerella belongs to Trimerellidae'
'Peritritoechia belongs to Polytoechiidae'
'Permianella belongs to Permianellidae'
'Permianellidae belongs to Permianelloidea'
'Permianelloidea belongs to Lyttoniidina'
'Permochonetes belongs to Caenanopliinae'
'Permorthotetes is a subjective synonym of Werriea'
'Permorthotestes is a misspelling of Permorthotetes'
'Permundaria belongs to Schrenkiellinae'
'Petalochonetes belongs to Delepineinae'
'Petasmaia belongs to Lyttoniinae'
'Petrocrania belongs to Craniidae'
'Petroria was reranked as Leptella (Petroria) and belongs to Leptella'
'Phaceloorthis belongs to Giraldiellidae'
'Pharcidodiscus belongs to Semicostellini'
'Philhedra belongs to Craniidae'
'Philhedrella is a subjective synonym of Petrocrania'
'Philippotia is a subjective synonym of Chlupacina'
'Pholidops is a subjective synonym of Craniops'
'Pholidops hamiltoniae is recombined as Craniops hamiltoniae' according to Hoare and Steller 1969
'Pholidops terminalis belongs to Pholidops' according to Hall 1859
'Pholidops terminalis is recombined as Lingulapholis terminalis' according to Schuchert 1913
'Pholidostrophia belongs to Strophodontidae'
'Phragmophora belongs to Prokopiinae'
'Phragmorthidae belongs to Plectorthoidea'
'Phragmorthis belongs to Phragmorthidae'
'Phragmostrophia belongs to Protodouvillininae'
'Physotreta belongs to Acrotretidae'
'Picnotreta belongs to Acrotretidae'
'Piloricilla belongs to Tolmatchoffiini'
'Pionodema belongs to Draboviinae'
'Pionomena belongs to Glyptomeninae'
'Pirgulia belongs to Lyttoniinae'
'Placotriplesia belongs to Triplesiidae'
'Plaesiomyidae belongs to Orthoidea'
'Plaesiomyinae belongs to Plaesiomyidae'
'Plaesiomys belongs to Plaesiomyinae'
'Planicardinia belongs to Mystrophoridae'
'Planihaydenella belongs to Chonetellini'
'Planispina belongs to Teguliferininae'
'Planispina conida belongs to Planispina'
'Planodouvillina is a subjective synonym of Mesodouvillina'
'Planoharknessella is a subjective synonym of Svobodaina'
'Planoproductus belongs to Rugaurini'
'Platycancrinella is a subjective synonym of Cancrinella'
'Platycancrinella grandauris is recombined as Cancrinella grandauris'
'Platyconcha is replaced by Biplatyconcha'
'Platymena belongs to Glyptomeninae'
'Platyorthidae belongs to Dalmanelloidea'
'Platyorthis belongs to Platyorthidae'
'Platyselma belongs to Plicatiferini'
'Platystrophia belongs to Platystrophiidae'
'Platystrophiidae belongs to Plectorthoidea'
'Platytoechia belongs to Polytoechiidae'
'Plebejochonetes belongs to Chonetinae'
'Plectambonitacea is replaced by Plectambonitoidea'
'Plectambonites belongs to Plectambonitinae'
'Plectambonitidae belongs to Plectambonitoidea'
'Plectambonitinae belongs to Plectambonitidae'
'Plectambonitoidea belongs to Strophomenida'
'Plectella belongs to Plectambonitinae'
'Plectodonta belongs to Sowerbyellinae'
'Plectodontella was reranked as Plectodonta (Plectodontella) and belongs to Plectodonta'
'Plectoglossa belongs to Glossellinae'
'Plectorthidae belongs to Plectorthoidea'
'Plectorthis belongs to Plectorthidae'
'Plectorthoidea belongs to Orthidina'
'Plectotreta belongs to Triplesiidae'
'Pleurochonetes belongs to Notiochonetinae'
'Pleurorthis belongs to Nanorthidae'
'Plicaea belongs to Quadratiinae'
'Plicanoplia belongs to Caenanopliinae'
'Plicatifera belongs to Plicatiferini'
'Plicatiferina belongs to Quadratiinae'
'Plicatiferinae belongs to Productellidae'
'Plicatiferini belongs to Plicatiferinae'
'Plicatoderbyia is a subjective synonym of Derbyia'
'Plicatolingula belongs to Problematica'
'Plicochonetes belongs to Plicochonetinae'
'Plicochonetinae belongs to Rugosochonetidae'
'Plicodevonaria is an objective synonym of Devonaria'
'Plicoproductus belongs to Eoproductellinae'
'Plicostropheodonta was reranked as Dictyostrophia (Plicostropheodonta) and belongs to Dictyostrophia'
'Ploughsharella belongs to Productida'
'Poikilosakinae belongs to Lyttoniidae'
'Poikilosakos belongs to Poikilosakinae'
'Poloniproductus belongs to Devonoproductinae'
'Polylasma belongs to Torynelasmatidae'
'Polymorpharia belongs to Institellinae'
'Polytoechia belongs to Polytoechiidae'
'Polytoechiidae belongs to Polytoechioidea'
'Polytoechioidea belongs to Clitambonitidina'
'Pomatotrema belongs to Polytoechiidae'
'Pomeraniotreta belongs to Ephippelasmatidae'
'Pomeromena belongs to Glyptomeninae'
'Pompeckium belongs to Eoorthidae'
'Poramborthidae belongs to Orthoidea'
'Poramborthis belongs to Poramborthidae'
'Portranellidae belongs to Dalmanelloidea'
'Pradochonetes belongs to Dagnachonetinae'
'Praehorridonia belongs to Horridoniini'
'Praewaagenoconcha belongs to Caucasiproductinae'
'Prantlina belongs to Glossorthinae'
'Probolionia belongs to Marginiferini'
'Proboscidella belongs to Proboscidellini'
'Proboscidellini belongs to Striatiferinae'
'Proboscisambon belongs to Glyptomeninae'
'Productella belongs to Productellinae'
'Productella (Hamlingella) was reranked as Hamlingella and belongs to Araksalosiinae'
'Productellana belongs to Sentosiini'
'Productellidae belongs to Productoidea'
'Productellina belongs to Productinini'
'Productellinae belongs to Productellidae'
'Productelloides belongs to Leioproductini'
'Productida belongs to Strophomenata'
'Productidae belongs to Productoidea'
'Productidina belongs to Productida'
'Productina belongs to Productinini'
'Productinae belongs to Productellidae'
'Productini belongs to Productinae'
'Productininae belongs to Productellidae'
'Productinini belongs to Productininae'
'Productoidea belongs to Productidina'
'Productorthidae belongs to Orthoidea'
'Productorthinae belongs to Productorthidae'
'Productorthis belongs to Productorthinae'
'Productus belongs to Productini'
'Productus (Haydenella) was reranked as Haydenella and belongs to Chonetellini'
'Productus (Linoproductus) was reranked as Linoproductus and belongs to Linoproductinae'
'Productus (Taeniothaerus) was reranked as Taeniothaerus and belongs to Aulosteginae'
'Productus giganteus is recombined as Gigantoproductus giganteus'
'Prokopia belongs to Prokopiinae'
'Prokopiinae belongs to Dalmanellidae'
'Promarginifera belongs to Retariini'
'Prorichthofenia is a nomen dubium'
'Prorichthofeniinae is an invalid subgroup of Richthofenioidea'
'Prorugaria belongs to Plicochonetinae'
'Proschizophoria belongs to Proschizophoriidae'
'Proschizophoriidae belongs to Dalmanelloidea'
'Prosoponella is a subjective synonym of Trimerella'
'Protambonites belongs to Polytoechiidae'
'Protanidanthus belongs to Anidanthinae'
'Proteguliferina belongs to Teguliferininae'
'Proteorthis belongs to Giraldiellidae'
'Protobolus belongs to Problematica'
'Protochonetes belongs to Protochonetinae'
'Protochonetinae belongs to Strophochonetidae'
'Protocortezorthis belongs to Isorthinae'
'Protocymostrophia was reranked as Cymostrophia (Protocymostrophia) and belongs to Cymostrophia'
'Protodouvillina belongs to Protodouvillininae'
'Protodouvillininae belongs to Douvillinidae'
'Protohesperonomia belongs to Hesperonomiidae'
'Protoleptostrophia belongs to Leptostrophiidae'
'Protomegastrophia belongs to Leptostrophiidae'
'Protomendacella belongs to Draboviinae'
'Protoniella belongs to Paramarginiferini'
'Protophragmapora belongs to Prokopiinae'
'Protorthida belongs to Rhynchonellata'
'Protorthidae belongs to Protorthoidea'
'Protorthis belongs to Protorthidae'
'Protorthoidea belongs to Protorthida'
'Protoshaleria is a subjective synonym of Shaleria'
'Protoskenidiodes is a misspelling of Protoskenidioides'
'Protoskenidioides belongs to Skenidiidae'
'Prototreta belongs to Acrotretidae'
'Psamathopalass belongs to Problematica'
'Pseudoanisopleurella is a subjective synonym of Anisopleurella'
'Pseudoantiquatonia belongs to Tyloplectini'
'Pseudoavonia belongs to Costispiniferini'
'Pseudobolus belongs to Obolinae'
'Pseudochonetes belongs to Parachonetinae'
'Pseudocrania belongs to Craniidae'
'Pseudoderbyia is a subjective synonym of Derbyia'
'Pseudodicellomus belongs to Elkaniidae'
'Pseudodicoelosia belongs to Rhipidomellinae'
'Pseudodouvillina is a subjective synonym of Sulcatostrophia'
'Pseudodouvillina euglyphea is recombined as Sulcatostrophia euglyphea'
'Pseudohaydenella belongs to Auriculispininae'
'Pseudoleptellina is a subjective synonym of Kajnaria'
'Pseudoleptodus belongs to Poikilosakinae'
'Pseudolingula belongs to Pseudolingulidae'
'Pseudolingulidae belongs to Linguloidea'
'Pseudolingulidae belongs to Linguloidea'
'Pseudomarginifera is a subjective synonym of Anidanthus'
'Pseudomendacella belongs to Rhipidomellinae'
'Pseudomimella belongs to Plectorthidae'
'Pseudomonticulifera is a subjective synonym of Chilianshania'
'Pseudoorthotetes is a subjective synonym of Orthotetes'
'Pseudopholidops belongs to Craniopsidae'
'Pseudostrophochonetes belongs to Strophochonetinae'
'Pseudostrophomena belongs to Strophomeninae'
'Psiloria belongs to Protorthidae'
'Pterostrophia belongs to Strophodontidae'
'Ptychoglyptinae belongs to Sowerbyellidae'
'Ptychoglyptus belongs to Ptychoglyptinae'
'Ptychopeltis is a subjective synonym of Schizocrania'
'Ptychopeltis incola is recombined as Schizocrania incola'
'Ptychopleurella belongs to Hesperorthidae'
'Pugilis belongs to Dictyoclostinae'
'Pulchratia belongs to Juresaniini'
'Pulsia belongs to Pulsiidae'
'Pulsiidae belongs to Orthotetoidea'
'Pustula belongs to Pustulinae'
'Pustulinae belongs to Echinoconchidae'
'Pygmochonetes belongs to Caenanopliinae'
'Qianjiangella is a subjective synonym of Leptellina'
'Qianomena belongs to Glyptomeninae'
'Quadratia belongs to Quadratiinae'
'Quadratiinae belongs to Araksalosiidae'
'Quadrisonia belongs to Acrotretidae'
'Quadrochonetes belongs to Svalbardiinae'
'Quasithambonia is a subjective synonym of Eosiphonotreta'
'Quebecia is a subjective synonym of Yorkia'
'Quinquenella belongs to Quinquenellinae'
'Quinquenellinae belongs to Rugosochonetidae'
'Quondongia belongs to Furcitellinae'
'Radiomena belongs to Protodouvillininae'
'Rafanoglossa belongs to Glossellinae'
'Rafinesquina belongs to Rafinesquininae'
'Rafinesquina (Playfairia) was reranked as Playfairia and belongs to Strophomenoidea'
'Rafinesquina anijana is recombined as Bekkerina anijana'
'Rafinesquinidae belongs to Strophomenoidea'
'Rafinesquininae belongs to Rafinesquinidae'
'Railtonella belongs to Grorudiidae'
'Railtonella belongs to Grorudiidae'
'Ralia belongs to Donalosiinae'
'Ramavectus belongs to Rhamnariinae'
'Ramovsina belongs to Rhamnariinae'
'Ranorthidae belongs to Plectorthoidea'
'Ranorthis belongs to Ranorthidae'
'Ratburia is a subjective synonym of Striochonetes'
'Rauna is replaced by Raunites'
'Raunites belongs to Gonambonitidae'
'Ravozetina belongs to Dalmanellinae'
'Redlichella is a subjective synonym of Acrothele'
'Reedoconcha belongs to Aulosteginae'
'Reeftonia belongs to Cortezorthinae'
'Reinversella was reranked as Inversella (Reinversella) and belongs to Inversella'
'Renaudia belongs to Eodevonariidae'
'Replicoskenidioides belongs to Skenidiidae'
'Resserella belongs to Resserellinae'
'Resserella (Howellites) was reranked as Howellites and belongs to Dalmanellinae'
'Resserellinae belongs to Dalmanellidae'
'Retaria is a subjective synonym of Kutorginella'
'Retariini belongs to Productinae'
'Retichonetes belongs to Retichonetinae'
'Retichonetinae belongs to Chonetidae'
'Reticulatia belongs to Dictyoclostinae'
'Retimarginifera belongs to Paucispiniferini'
'Retroplexus belongs to Institellinae'
'Reuschella belongs to Harknessellidae'
'Reversella belongs to Leptellininae'
'Rhactorthidae belongs to Plectorthoidea'
'Rhactorthis belongs to Rhactorthidae'
'Rhamnaria belongs to Rhamnariinae'
'Rhamnariinae belongs to Aulostegidae'
'Rhinotreta belongs to Ephippelasmatidae'
'Rhipidomella belongs to Rhipidomellinae'
'Rhipidomellida is replaced by Orthida'
'Rhipidomellidae belongs to Dalmanelloidea'
'Rhipidomellinae belongs to Rhipidomellidae'
'Rhipidomelloides is a subjective synonym of Dalejina'
'Rhipidomena belongs to Rafinesquininae'
'Rhondellina belongs to Acrotretidae'
'Rhynchonella (Stegerhynchus) was reranked as Stegerhynchus and belongs to Rhynchotrematinae'
'Rhynchonellata belongs to Rhynchonelliformea'
'Rhynchonellida belongs to Rhynchonellata'
'Rhynchorthis belongs to Cyclocoeliidae'
'Rhynobolus belongs to Trimerellidae'
'Rhysotreta belongs to Scaphelasmatidae'
'Rhyssochonetes belongs to Dagnachonetinae'
'Rhytialosia belongs to Rhytialosiinae'
'Rhytialosiinae belongs to Araksalosiidae'
'Rhytibulbus belongs to Agelesiinae'
'Rhytiophora belongs to Semicostellini'
'Rhytisia belongs to Incisiini'
'Rhytistrophia was reranked as Leptostrophia (Rhytistrophia) and belongs to Leptostrophia'
'Richthofenia belongs to Richthofeniidae'
'Richthofeniacea is corrected as Richthofenioidea and belongs to Lyttoniidina'
'Richthofeniidae belongs to Richthofenioidea'
'Richthofeniinae is an invalid subgroup of Richthofeniidae'
'Rigbyella belongs to Rigbyellidae'
'Rigbyellidae belongs to Lyttonioidea'
'Riograndella belongs to Nanorthidae'
'Robertorthis belongs to Eoorthidae'
'Roemerella belongs to Disciniidae'
'Rosobolus belongs to Zhanatellidae'
'Rotundostrophia belongs to Leptostrophiidae'
'Rugaria belongs to Plicochonetinae'
'Rugatia belongs to Dictyoclostinae'
'Rugaurini belongs to Plicatiferinae'
'Rugauris belongs to Rugaurini'
'Rugicostella belongs to Institellinae'
'Rugivestis belongs to Paramarginiferini'
'Rugoclostus belongs to Horridoniini'
'Rugoconcha belongs to Plicatiferini'
'Rugoleptaena belongs to Leptaeninae'
'Rugosochonetes belongs to Rugosochonetinae'
'Rugosochonetidae belongs to Chonetoidea'
'Rugosochonetinae belongs to Rugosochonetidae'
'Rugosomarginifera is a subjective synonym of Spinomarginifera'
'Rugosowerbyella was reranked as Sowerbyella (Rugosowerbyella) and belongs to Sowerbyella'
'Rurambonites belongs to Leptestiidae'
'Rustella is a subjective synonym of Kutorgina'
'Ruthiphiala belongs to Araksalosiinae'
'Rutrumella belongs to Ahtiellinae'
'Saccogonum belongs to Billingsellidae'
'Saetosina is a subjective synonym of Terrakea'
'Saharonetes belongs to Holynetinae'
'Sajakella belongs to Yakovleviini'
'Salacorthis belongs to Platystrophiidae'
'Salanygolina belongs to Cryptotretidae'
'Salopia belongs to Linoporellidae'
'Salopina belongs to Draboviinae'
'Salopinella is a subjective synonym of Salopina'
'Sampo belongs to Leptestiidae'
'Sandia belongs to Breileeniini'
'Sandrella belongs to Quinquenellinae'
'Sanjuanella belongs to Ahtiellinae'
'Sanjuanetes belongs to Strophochonetinae'
'Sanxiaella is a subjective synonym of Pseudopholidops'
'Sarytchevinella belongs to Compressoproductinae'
'Satpakella belongs to Acrotretidae'
'Saucrorthis belongs to Productorthinae'
'Saukrodictya belongs to Saukrodictyidae'
'Saukrodictyidae belongs to Enteletoidea'
'Scacchinella belongs to Scacchinellinae'
'Scacchinellidae belongs to Aulostegoidea'
'Scacchinellinae belongs to Scacchinellidae'
'Scambocris belongs to Problematica'
'Scamnomena belongs to Leptaeninae'
'Scapharina belongs to Incisiini'
'Scaphelasma belongs to Scaphelasmatidae'
'Scaphelasmatidae belongs to Acrotretoidea'
'Scaphorthis belongs to Giraldiellidae'
'Sceletonia belongs to Poikilosakinae'
'Schalidomorthis belongs to Glyptorthidae'
'Schedophyla belongs to Ahtiellinae'
'Schellwienella belongs to Pulsiidae'
'Schistochonetes belongs to Rugosochonetinae'
'Schizambon belongs to Siphonotretidae'
'Schizobolus belongs to Trematidae'
'Schizocrania belongs to Trematidae'
'Schizonema belongs to Hesperorthidae'
'Schizopholis belongs to Acrothelinae'
'Schizophorella belongs to Plectorthidae'
'Schizophoria belongs to Schizophoriidae'
'Schizophoria (Eoschizophoria) was reranked as Eoschizophoria and belongs to Schizophoriidae'
'Schizophoriidae belongs to Enteletoidea'
'Schizopleuronia belongs to Isogrammidae'
'Schizoramma is an objective synonym of Schizonema'
'Schizotreta belongs to Discinidae'
'Schizotretoides belongs to Acrotretoidea'
'Schmidtites belongs to Obolinae'
'Schrenkiella belongs to Schrenkiellinae'
'Schrenkiellinae belongs to Monticuliferidae'
'Schuchertella belongs to Schuchertellinae'
'Schuchertellidae belongs to Orthotetoidea'
'Schuchertellinae belongs to Schuchertellidae'
'Schuchertellopsis belongs to Schuchertellinae'
'Schuchertina belongs to Kutorginidae'
'Scissicosta belongs to Tolmatchoffiini'
'Scoloconcha belongs to Krotoviini'
'Scutepustula belongs to Pustulinae'
'Selloproductus belongs to Linoproductidae'
'Semenewia belongs to Chonopectidae'
'Semicostella belongs to Semicostellini'
'Semicostellini belongs to Plicatiferinae'
'Semileptagonia is a subjective synonym of Leptagonia'
'Semilingula belongs to Lingulidae'
'Seminucella belongs to Semiproductini'
'Semiplanella belongs to Semiplanini'
'Semiplanini belongs to Gigantoproductinae'
'Semiplanus belongs to Semiplanini'
'Semiproductini belongs to Leioproductinae'
'Semiproductus belongs to Semiproductini'
'Semitreta belongs to Acrotretidae'
'Sentolunia is a subjective synonym of Chonetoidea'
'Sentosia belongs to Sentosiini'
'Sentosiidae belongs to Echinoconchoidea'
'Sentosiinae belongs to Sentosiidae'
'Sentosiini belongs to Sentosiinae'
'Sentosioides belongs to Sentosiini'
'Septachonetes belongs to Holynetinae'
'Septarinia belongs to Pustulinae'
'Septasteges is a subjective synonym of Bilotina'
'Septiconcha belongs to Echinoconchoidea'
'Septorthis belongs to Cremnorthidae'
'Serbarinia belongs to Gigantoproductini'
'Sericoidea is a subjective synonym of Chonetoidea'
'Serratocrista belongs to Schuchertellinae'
'Seseloisi is a misspelling of Seseloidia'
'Seseloidia belongs to Richthofeniidae'
'Sestropoma belongs to Cyclacanthariinae'
'Setigerites belongs to Buxtoniini'
'Severginella belongs to Plectorthidae'
'Shagamella belongs to Protochonetinae'
'Shaleria belongs to Shaleriidae'
'Shaleria (Janiomya) belongs to Shaleria'
'Shaleriella belongs to Shaleriidae'
'Shaleriidae belongs to Strophomenoidea'
'Shanxiproductus belongs to Paucispiniferini'
'Shiqianella is an objective synonym of Spinochonetes'
'Shiragia is a subjective synonym of Bohemiella'
'Shishapangmaella is a subjective synonym of Dowhatania'
'Shlyginia belongs to Leptellininae'
'Shoshonorthis belongs to Nanorthidae'
'Siberistrophia is a subjective synonym of Protoleptostrophia'
'Sibiria belongs to Trematobolidae'
'Sicelia belongs to Meekellinae'
'Sicularia belongs to Hercosiidae'
'Sigmelasma belongs to Wangyuiidae'
'Sigopallus is a subjective synonym of Paucicrura'
'Similoleptaena is a subjective synonym of Leptaena'
'Similoleptaena paucirugata is recombined as Leptaena paucirugata'
'Simplicarina belongs to Incisiini'
'Sinochonetes belongs to Dagnachonetinae'
'Sinoglossa belongs to Obolinae'
'Sinoproductella belongs to Productellinae'
'Sinorthis belongs to Orthidae'
'Sinoshaleria is a subjective synonym of Malurostrophia'
'Sinostrophia belongs to Mesodouvillininae'
'Sinotrimerella belongs to Trimerellidae'
'Sinotrimerella jiangshanensis belongs to Sinotrimerella' according to Lin and Han 1980
'Sinuatella belongs to Institellinae'
'Sinuatellidae is a subjective synonym of Institellinae'
'Siphonobolus belongs to Siphonotretidae'
'Siphonosia belongs to Siphonosiinae'
'Siphonosiinae belongs to Linoproductidae'
'Siphonotreta belongs to Siphonotretidae'
'Siphonotretella belongs to Siphonotretidae'
'Siphonotretida belongs to Lingulata'
'Siphonotretidae belongs to Siphonotretoidea'
'Siphonotretoidea belongs to Siphonotretida'
'Skenidiidae belongs to Skenidioidea'
'Skenidioidea belongs to Protorthida'
'Skenidioides belongs to Skenidiidae'
'Skenidium belongs to Skenidiidae'
'Smeathenella belongs to Harknessellidae'
'Sokolskya belongs to Rugosochonetinae'
'Sommeriella was reranked as Neochonetes (Sommeriella) and belongs to Neochonetes'
'Sonculina is a subjective synonym of Mimella'
'Songzichonetes belongs to Caenanopliinae'
'Soudleyella is a subjective synonym of Onniella'
'Sowerbina is a subjective synonym of Horridonia'
'Sowerbyella belongs to Sowerbyellinae'
'Sowerbyellidae belongs to Plectambonitoidea'
'Sowerbyellinae belongs to Sowerbyellidae'
'Sowerbyites belongs to Syndielasmatidae'
'Spanodonta belongs to Taffiinae'
'Sphenalosia belongs to Strophalosiinae'
'Sphenophragmus belongs to Draboviinae'
'Sphenosteges belongs to Echinosteginae'
'Spinarella belongs to Paucispiniferini'
'Spinauris belongs to Waagenoconchini'
'Spinifrons belongs to Tolmatchoffiini'
'Spinifronsinae is a subjective synonym of Buxtoniinae'
'Spinilingula belongs to Obolinae'
'Spinocarinifera belongs to Semiproductini'
'Spinochonetes belongs to Strophochonetinae'
'Spinolyttonia is a subjective synonym of Leptodus'
'Spinomarginifera belongs to Marginiferini'
'Spinorugifera belongs to Levitusini'
'Spinostrophia belongs to Leptodontellinae'
'Spinulicosta belongs to Productellinae'
'Spinulothele belongs to Acrothelinae'
'Spirifer (Spirisosium) was reranked as Spirisosium and belongs to Echinosteginae'
'Spitzbergenia belongs to Auriculispininae'
'Spondyglossella belongs to Glossellinae'
'Spondylotreta belongs to Acrotretidae'
'Spuriosa belongs to Rhamnariinae'
'Spyridiophora belongs to Spyridiophorini'
'Spyridiophoridae was reranked as the tribe Spyridiophorini and belongs to Productinae'
'Squamaria belongs to Tolmatchoffiini'
'Squamatina belongs to Parachonetinae'
'Squamilingulella belongs to Obolinae'
'Stainbrookia belongs to Rhipidomellinae'
'Stauromata is a subjective synonym of Dyoros'
'Stauromata esoterica is recombined as Dyoros esoterica'
'Stegacanthia belongs to Sentosiini'
'Steinhagella belongs to Rhytialosiinae'
'Stelckia belongs to Productellinae'
'Stepanoconchus belongs to Echinoconchini'
'Stepanoviella belongs to Grandaurispininae'
'Stereochia belongs to Dictyoclostinae'
'Stictozoster belongs to Costispiniferini'
'Strictozoster is a misspelling of Stictozoster'
'Stilpnotreta belongs to Acrotretidae'
'Stipulina belongs to Agelesiinae'
'Streptis belongs to Triplesiidae'
'Streptopomum belongs to Derbyiidae'
'Streptorhynchinae belongs to Schuchertellidae'
'Streptorhynchus belongs to Streptorhynchinae'
'Striatifera belongs to Striatiferini'
'Striatiferinae belongs to Monticuliferidae'
'Striatiferini belongs to Striatiferinae'
'Striatochonetes belongs to Devonochonetinae'
'Striatoproductella belongs to Eoproductellinae'
'Striatospica belongs to Schrenkiellinae'
'Strigospina is a subjective synonym of Marginifera'
'Striirichthofenia belongs to Richthofeniidae'
'Striochonetes belongs to Striochonetinae'
'Striochonetinae belongs to Rugosochonetidae'
'Strixella belongs to Rhipidomellinae'
'Strophalosia belongs to Strophalosiinae'
'Strophalosia (Bilotina) was reranked as Bilotina and belongs to Juresaniini'
'Strophalosia (Girlasia) was reranked as Girlasia and belongs to Echinosteginae'
'Strophalosiacea is corrected as Strophalosioidea and belongs to Strophalosiidina'
'Strophalosiella belongs to Echinosteginae'
'Strophalosiidae belongs to Strophalosioidea'
'Strophalosiidina belongs to Productida'
'Strophalosiina belongs to Echinosteginae'
'Strophalosiinae belongs to Strophalosiidae'
'Stropheodonta is corrected as Strophodonta and belongs to Strophodontidae'
'Stropheodonta (Rhenostrophia) was reranked as Rhenostrophia and belongs to Strophomenoidea'
'Stropheodonta donax is recombined as Drummuckina donax'
'Stropheodontidae is corrected as Strophodontidae and belongs to Strophomenoidea'
'Strophochonetes belongs to Strophochonetinae'
'Strophochonetidae belongs to Chonetoidea'
'Strophochonetinae belongs to Strophochonetidae'
'Strophodonta (Strophodonta) belongs to Strophodonta'
'Strophomena belongs to Strophomeninae'
'Strophomena (Actinomena) orta is recombined as Actinomena orta'
'Strophomena (Eostrophomena) was reranked as Eostrophomena and belongs to Orthidiellidae'
'Strophomena (Eostrophomena) elegantula is recombined as Eostrophomena elegantula'
'Strophomena depressa ventricosa is recombined as Leptaenella ventricosa' according to Fredericks 1918
'Strophomenacea is replaced by Strophomenoidea'
'Strophomenata belongs to Rhynchonelliformea'
'Strophomenida belongs to Strophomenata'
'Strophomenidae belongs to Strophomenoidea'
'Strophomeninae belongs to Strophomenidae'
'Strophomenoidea belongs to Strophomenida'
'Strophonella belongs to Strophonellidae'
'Strophonella (Quasistrophonella) belongs to Strophonella'
'Strophonella prolongata is recombined as Amphistrophia (Amphistrophiella) prolongata'
'Strophonellidae belongs to Strophomenoidea'
'Strophonellites is a subjective synonym of Amphistrophia'
'Strophonelloides belongs to Strophodontidae'
'Strophoprion is a subjective synonym of Strophonella'
'Strophoproductus belongs to Caucasiproductinae'
'Strophorichthofenia belongs to Hercosiidae'
'Subglobosochonetes belongs to Caenanopliinae'
'Substriatifera is a subjective synonym of Compressoproductus'
'Subtaeniothaerus belongs to Strophalosiinae'
'Sulcataria belongs to Svalbardiinae'
'Sulcatorthis belongs to Orthidae'
'Sulcatostrophia belongs to Leptodontellinae'
'Sulcirugaria belongs to Plicochonetinae'
'Svalbardia belongs to Svalbardiinae'
'Svalbardiinae belongs to Rugosochonetidae'
'Svalbardoproductus belongs to Retariini'
'Svobodaina belongs to Heterorthidae'
'Swantonia belongs to Naukatidae'
'Syndielasma belongs to Syndielasmatidae'
'Syndielasmatidae belongs to Plectambonitoidea'
'Syntrophodonta belongs to Strophomenoidea'
'Taemostrophia belongs to Protodouvillininae'
'Taffia belongs to Taffiinae'
'Taffiidae belongs to Plectambonitoidea'
'Taffiinae belongs to Taffiidae'
'Tafilaltia belongs to Heterorthidae'
'Taimyropsis belongs to Streptorhynchinae'
'Talasoproductus belongs to Semiplanini'
'Talentella belongs to Draboviinae'
'Taleoleptaena belongs to Leptaenoideidae'
'Tapajotia belongs to Orthotetidae'
'Taphrodonta belongs to Taphrodontinae'
'Taphrodontinae belongs to Plectambonitidae'
'Taphrorthis belongs to Orthidae'
'Taphrosestria belongs to Cyclacanthariinae'
'Tarfaya belongs to Heterorthidae'
'Tarutiglossa belongs to Pseudolingulidae'
'Tashanomena belongs to Teratelasminae'
'Tasmanorthidae belongs to Plectorthoidea'
'Tasmanorthis belongs to Tasmanorthidae'
'Tastaria is a subjective synonym of Protoleptostrophia'
'Tazzarinia belongs to Giraldiellidae'
'Tchadania belongs to Leptaeninae'
'Tectarea belongs to Gemmellaroiidae'
'Tegulifera is replaced by Teguliferina'
'Teguliferina belongs to Teguliferininae'
'Teguliferinidae was reranked as the subfamily Teguliferininae and belongs to Cyclacanthariidae'
'Teichertina belongs to Dicoelosiidae'
'Teichostrophia belongs to Protodouvillininae'
'Telaeoshaleria belongs to Protodouvillininae'
'Teleoproductus belongs to Auriculispininae'
'Templeellinae belongs to Dalmanellidae'
'Tenuichonetes belongs to Capillomesolobinae'
'Teratelasma belongs to Teratelasminae'
'Teratelasmella belongs to Furcitellinae'
'Teratelasminae belongs to Glyptomenidae'
'Terrakea belongs to Grandaurispininae'
'Tesuquea belongs to Retariini'
'Tetraodontella belongs to Grorudiidae'
'Tetraphalerella was reranked as Strophomena (Tetraphalerella) and belongs to Strophomena' according to Wang 1949
'Tetraphalerella was reranked as Strophomena (Tetraphalerella) and belongs to Strophomena'
'Thaerodonta is a subjective synonym of Eochonetes'
'Thamnosia belongs to Retariini'
'Thiemella belongs to Rhipidomellinae'
'Thomasella belongs to Institiferini'
'Thuleproductus is a subjective synonym of Thamnosia'
'Thysanobolus is a subjective synonym of Thysanotos'
'Thysanotos belongs to Zhanatellidae'
'Tilasia belongs to Elkaniidae'
'Timalina belongs to Linguloidea'
'Tissintia belongs to Heterorthidae'
'Titanambonites belongs to Palaeostrophomeninae'
'Titanaria belongs to Gigantoproductini'
'Titanomena belongs to Furcitellinae'
'Tityrophoria belongs to Horridoniini'
'Tivertonia belongs to Svalbardiinae'
'Tobejalotreta belongs to Scaphelasmatidae'
'Tolmatchoffia belongs to Tolmatchoffiini'
'Tolmatchoffiini belongs to Buxtoniinae'
'Tomasina belongs to Linguloidea'
'Tomilia belongs to Tolmatchoffiini'
'Tomiproductus belongs to Tolmatchoffiini'
'Toquimia belongs to Palaeostrophomeninae'
'Tornquistia belongs to Anopliinae'
'Torynelasma belongs to Torynelasmatidae'
'Torynelasmatidae belongs to Acrotretoidea'
'Tourmakeadia belongs to Taffiinae'
'Toxorthis belongs to Wangyuiidae'
'Transennatia belongs to Paucispiniferini'
'Treioria belongs to Hesperonomiidae'
'Trematidae belongs to Discinoidea'
'Trematis belongs to Trematidae'
'Trematobolidae belongs to Obolelloidea'
'Trematobolus belongs to Trematobolidae'
'Trematorthis belongs to Orthidiellidae'
'Trematosia belongs to Nisusiidae'
'Treptotreta belongs to Acrotretidae'
'Trichochonetes belongs to Holynetinae'
'Trigonoglossa belongs to Obolinae'
'Trigrammaria belongs to Furcitellinae'
'Trilobostrophia belongs to Strophodontidae'
'Trimerella belongs to Trimerellidae'
'Trimerellida belongs to Craniata'
'Trimerellidae belongs to Trimerelloidea'
'Trimerelloidea belongs to Trimerellida'
'Trimurellina was reranked as Kassinella (Trimurellina) and belongs to Kassinella'
'Triplesia belongs to Triplesiidae'
'Triplesiidae belongs to Triplesioidea'
'Triplesiidina belongs to Orthotetida'
'Triplesioidea belongs to Triplesiidina'
'Tritoechia belongs to Polytoechiidae'
'Trondorthis belongs to Orthidae'
'Tropidelasma belongs to Streptorhynchinae'
'Tropidoglossa belongs to Zhanatellidae'
'Tropidothyris belongs to Skenidiidae'
'Trucizetina belongs to Dalmanellinae'
'Truncalosia belongs to Donalosiinae'
'Truncatenia is a subjective synonym of Licharewiella'
'Tschernyschewia belongs to Tschernyschewiinae'
'Tschernyschewiidae was reranked as the subfamily Tschernyschewiinae and belongs to Scacchinellidae'
'Tubaria belongs to Retariini'
'Tuberella is replaced by Anopliella'
'Tuberella is a subjective synonym of Markamia'
'Tuberella tangxiangensis is recombined as Anopliella tangxiangensis'
'Tubersulculinae is a subjective synonym of Costispiniferini'
'Tubersulculus belongs to Costispiniferini'
'Tubulostrophia belongs to Leptostrophiidae'
'Tudiaophomena belongs to Leptostrophiidae'
'Tulcumbella belongs to Chonostrophiidae'
'Tunisiglossa belongs to Glossellinae'
'Turarella is a nomen dubium'
'Turgenostrophia is a subjective synonym of Leptaena'
'Turgenostrophia rara is recombined as Leptaena rara'
'Turriculum is a subjective synonym of Geyerella'
'Tuvaechonetes belongs to Leptostrophiidae'
'Tuvaestrophia belongs to Leptostrophiidae'
'Tuvinia belongs to Orthidiellidae'
'Tyersella belongs to Isorthinae'
'Tylambonites is a subjective synonym of Chaganella'
'Tylambonites speciosa is recombined as Chaganella speciosa'
'Tyloplecta belongs to Tyloplectini'
'Tyloplectini belongs to Leioproductinae'
'Tyronella belongs to Tyronellidae'
'Tyronellidae belongs to Dalmanelloidea'
'Ujukites belongs to Palaeostrophomeninae'
'Ukoa belongs to Plectambonitoidea'
'Umboanctus belongs to Tolmatchoffiini'
'Uncisteges is a subjective synonym of Urushtenoidea'
'Undaria belongs to Auriculispininae'
'Undellaria belongs to Auriculispininae'
'Undiferina belongs to Eoconulidae'
'Undulella belongs to Undulellinae'
'Undelella is a misspelling of Undulella'
'Undulellinae belongs to Rugosochonetidae'
'Uraloconchus is a subjective synonym of Markamia'
'Uraloproductus is a nomen nudum'
'Urushtenia belongs to Chonosteginae'
'Urushtenoidea belongs to Chonosteginae'
'Ussunia belongs to Ussuniidae'
'Ussuniidae belongs to Trimerelloidea'
'Vaculina belongs to Lingulellotretidae'
'Valcourea belongs to Plaesiomyinae'
'Valdaria belongs to Chilidiopsinae'
'Vallomyonia belongs to Monelasmiinae'
'Vandalotreta belongs to Acrotretidae'
'Vediproductus belongs to Juresaniini'
'Veeversalosia belongs to Rhytialosiinae'
'Veliseptum belongs to Ephippelasmatidae'
'Vellamo belongs to Clitambonitidae'
'Velostrophia belongs to Leptostrophiidae'
'Verchojania belongs to Levipustulini'
'Villicundella is a subjective synonym of Hirnantia'
'Viodostrophia belongs to Leptostrophiidae'
'Visbyella belongs to Resserellinae'
'Vitiliproductus belongs to Auriculispininae'
'Volborthia belongs to Elkaniidae'
'Waagenites belongs to Rugosochonetinae'
'Waagenoconcha belongs to Waagenoconchini'
'Waagenoconcha (Gruntoconcha) belongs to Waagenoconcha'
'Waagenoconchini belongs to Juresaniinae'
'Wadiglossa belongs to Pseudolingulidae'
'Walcottina is a subjective synonym of Micromitra'
'Wangyuia belongs to Wangyuiidae'
'Wangyuiidae belongs to Plectorthoidea'
'Wardakia is a subjective synonym of Derbyia'
'Waterhouseiella belongs to Rugosochonetinae'
'Werriea belongs to Orthotetidae'
'Westonia belongs to Obolinae'
'Westonisca belongs to Obolinae'
'Westralicrania is a subjective synonym of Danocrania'
'Whidbornella belongs to Araksalosiinae'
'Whittardia belongs to Whittardiidae'
'Whittardiidae belongs to Orthoidea'
'Wimanella belongs to Bohemiellidae'
'Wimanoconcha is a subjective synonym of Waagenoconcha'
'Wiradjuriella is a subjective synonym of Mabella'
'Wooramella belongs to Strophalosiacea'
'Wulongella belongs to Harknessellidae'
'Wyatkina belongs to Aulosteginae'
'Wyndhamia belongs to Dasyalosiinae'
'Xenambonites belongs to Xenambonitinae'
'Xenambonitidae belongs to Plectambonitoidea'
'Xenambonitinae belongs to Xenambonitidae'
'Xenizostrophia is a subjective synonym of Carinastrophia'
'Xenorthis belongs to Billingsellidae'
'Xenosteges belongs to Echinosteginae'
'Xenostrophia is a subjective synonym of Nadiastrophia'
'Xestosia belongs to Paucispiniferini'
'Xinanorthis belongs to Nanorthidae'
'Xinjiangiproductus belongs to Gigantoproductini'
'Xinshaoproductus belongs to Tolmatchoffiini'
'Xystostrophia belongs to Chilidiopsinae'
'Yakovlevia belongs to Yakovleviini'
'Yakovleviini belongs to Plicatiferinae'
'Yanguania belongs to Semiproductini'
'Yichangorthis is a subjective synonym of Sinorthis'
'Yidurella belongs to Trimerellidae'
'Yidurella yiduensis belongs to Yidurella' according to Zeng 1987
'Yorkia belongs to Kutorginidae'
'Yuanbaella is a subjective synonym of Calyptolepta'
'Yunnanoleptaena is a subjective synonym of Rugoleptaena'
'Zhantella is a misspelling of Zhanatella'
'Zhanatella belongs to Zhanatellidae'
'Zhanatellidae belongs to Linguloidea'
'Zhejiangoproductus belongs to Monticuliferidae'
'Zhejiangorthis is a nomen dubium'
'Zhenania belongs to Monticuliferinae'
'Zhexichonetes belongs to Svalbardiinae'
'Zhuaconcha belongs to Costispiniferini'
'Zia belongs to Anidanthinae'
'Zlichopyramis belongs to Resserellinae'
'Zophostrophia belongs to Leptodontellinae'