Opinions from W. I. Mitchell 1977

  • 'Acanthocrania belongs to Craniidae'
  • 'Acrotretacea belongs to Acrotretidina'
  • 'Acrotretida belongs to Inarticulata'
  • 'Acrotretidae belongs to Acrotretacea'
  • 'Acrotretidina belongs to Acrotretida'
  • 'Actinomena belongs to Strophomeninae'
  • 'Aegiria belongs to Aegiromeninae'
  • 'Aegiria norvegica belongs to Aegiria' according to Opik 1933
  • 'Aegiromeninae belongs to Sowerbyellidae'
  • 'Ahtiella portlocki belongs to Ahtiella' according to Reed 1952
  • 'Ahtiella portlocki is recombined as Brachyprion portlocki'
  • 'Ancistrorhynchidae belongs to Rhynchonellacea'
  • 'Anisopleurella belongs to Sowerbyellidae'
  • 'Anisopleurella tricostellata belongs to Anisopleurella' according to Cooper 1956
  • 'Anomia biloba is recombined as Dicoelosia biloba'
  • 'Anomites rhomboidalis is recombined as Leptaena rhomboidalis' according to Reed 1952
  • 'Anoptambonites belongs to Leptellininae'
  • 'Atelelasma belongs to Atelelasmatinae'
  • 'Atelelasma perfectum belongs to Atelelasma' according to Cooper 1956
  • 'Atelelasmatinae belongs to Clitambonitidae'
  • 'Athyridacea belongs to Athyrididina'
  • 'Athyrididina belongs to Spiriferida'
  • 'Athyris headi is recombined as Catazyga headi'
  • 'Atrypa congesta is recombined as Hyattidina congesta'
  • 'Atrypa exigua is recombined as Protozyga exigua'
  • 'Atrypa extans is recombined as Triplesia extans'
  • 'Atrypa nitens is recombined as Hisingerella nitens'
  • 'Atrypacea belongs to Atrypidina'
  • 'Atrypidae belongs to Atrypacea'
  • 'Atrypidina belongs to Spiriferida'
  • 'Barbarorthis foramenifera belongs to Barbarorthis' according to Opik 1934
  • 'Bilobia belongs to Leptestiinae'
  • 'Bimuria belongs to Bimuriidae'
  • 'Bimuria superba belongs to Bimuria' according to Ulrich and Cooper 1942
  • 'Bimuriidae belongs to Strophomenida'
  • 'Brachyprion belongs to Stropheodontinae'
  • 'Camerella belongs to Camerellinae'
  • 'Camerella volborthi belongs to Camerella' according to Billings 1859
  • 'Camerellidae belongs to Syntrophiidina'
  • 'Camerellinae belongs to Camerellidae'
  • 'Campylorthis belongs to Plaesiomyinae'
  • 'Carinatininae belongs to Atrypidae'
  • 'Catazyga belongs to Zygospirinae'
  • 'Catazyga anticostiensis belongs to Catazyga' according to Billings 1862
  • 'Christiania belongs to Christianiidae'
  • 'Christiania perrugata elongata belongs to Christiania perrugata'
  • 'Christiania portlocki belongs to Christiania'
  • 'Christianiidae belongs to Strophomenacea'
  • 'Clitambonitacea belongs to Clitambonitidina'
  • 'Clitambonitidae belongs to Clitambonitacea'
  • 'Clitambonitidina belongs to Orthida'
  • 'Clitambonitinae belongs to Clitambonitidae'
  • 'Colaptomena belongs to Oepikinae'
  • 'Crania spiculata is recombined as Acanthocrania spiculata'
  • 'Craniacea belongs to Craniidina'
  • 'Craniella meduanensis is recombined as Petrocrania meduanensis'
  • 'Craniidae belongs to Craniacea'
  • 'Craniidina belongs to Lingulida'
  • 'Craniops pararia is recombined as Paracraniops pararia'
  • 'Craniopsidae belongs to Lingulacea'
  • 'Cremnorthidae belongs to Orthida'
  • 'Cremnorthinae belongs to Cremnorthidae'
  • 'Cremnorthis belongs to Cremnorthinae'
  • 'Cremnorthis parva belongs to Cremnorthis' according to Williams 1963
  • 'Cyclospira belongs to Cyclospirinae'
  • 'Cyclospira diversa is recombined as Protozyga diversa' according to Reed 1917
  • 'Cyclospira diversa is recombined as Protozyga diversa'
  • 'Cyclospira nana belongs to Cyclospira' according to Davidson 1869
  • 'Cyclospirinae belongs to Dayiidae'
  • 'Cyphomena belongs to Leptaenidae'
  • 'Cyphomena homostriata indicissa belongs to Cyphomena homostriata' according to Williams 1962
  • 'Cyrtonotella belongs to Orthinae'
  • 'Cyrtonotella virginiensis belongs to Cyrtonotella' according to Butts 1942
  • 'Dactylogonia belongs to Leptaenidae'
  • 'Dactylogonia geniculata belongs to Dactylogonia' according to Ulrich and Cooper 1942
  • 'Dalmanella belongs to Dalmanellidae'
  • 'Dalmanella sculpta belongs to Dalmanella' according to Cooper 1956
  • 'Dalmanella testudinaria transversa belongs to Dalmanella testudinaria'
  • 'Dalmanellidae belongs to Orthida'
  • 'Dayiidae belongs to Daylacea'
  • 'Daylacea belongs to Atrypidina'
  • 'Diambonia is a subjective synonym of Leangella'
  • 'Dicoelosia belongs to Dicoelosiidae'
  • 'Dicoelosia simulata belongs to Dicoelosia'
  • 'Dicoelosiidae belongs to Orthida'
  • 'Diplonorthis belongs to Orthinae'
  • 'Diplonorthis portlocki belongs to Diplonorthis'
  • 'Discinacea belongs to Lingulida'
  • 'Discinidae belongs to Discinacea'
  • 'Doleroides belongs to Plectorthinae'
  • 'Doleroides winchelli belongs to Doleroides' according to Cooper 1956
  • 'Dolerorthidae belongs to Orthacea'
  • 'Dolerorthinae belongs to Dolerorthidae'
  • 'Dolerorthis belongs to Dolerorthinae'
  • 'Draboviinae belongs to Schizophoriidae'
  • 'Drepanorhyncha belongs to Ancistrorhynchidae'
  • 'Enteletacea belongs to Orthida'
  • 'Eochonetes belongs to Sowerbyellidae'
  • 'Eochonetes celticus belongs to Eochonetes'
  • 'Eodinobolus belongs to Trimerellidae'
  • 'Eodinobolus balclatchiensis belongs to Eodinobolus' according to Reed 1917
  • 'Eoplectodonta belongs to Sowerbyellidae'
  • 'Plectatrypa is a subjective synonym of Plectatrypa'
  • 'Eostropheodonta belongs to Stropheodontinae'
  • 'Epacroplecia belongs to Triplesiidae'
  • 'Eremotrema belongs to Paurorthidae'
  • 'Eremotrema biconvexum belongs to Eremotrema' according to Cooper 1956
  • 'Eremotrema paucicostellatum belongs to Eremotrema' according to Mitchell 1977
  • 'Eridorthis belongs to Glyptorthinae'
  • 'Fascifera belongs to Draboviinae'
  • 'Fascifera subcarinata belongs to Fascifera' according to Ulrich and Cooper 1942
  • 'Glossella belongs to Glossellinae'
  • 'Glossella papillosa belongs to Glossella'
  • 'Glossellinae belongs to Obolidae'
  • 'Glyptomena belongs to Glyptomeninae'
  • 'Glyptomeninae belongs to Strophomenidae'
  • 'Glyptorthinae belongs to Dolerorthidae'
  • 'Glyptorthis belongs to Glyptorthinae'
  • 'Glyptorthis concinnula belongs to Glyptorthis'
  • 'Glyptorthis maritima belongs to Glyptorthis' according to Wright 1964
  • 'Gonambonitacea belongs to Clitambonitidina'
  • 'Gonambonites panderi is recombined as Kullervo panderi'
  • 'Gunnarella belongs to Strophomeninae'
  • 'Hesperorthinae belongs to Dolerorthidae'
  • 'Hindellinae belongs to Meristellidae'
  • 'Hirnantia belongs to Draboviinae'
  • 'Hisingerella belongs to Linnarssoniinae'
  • 'Hyattidina belongs to Hindellinae'
  • 'Hyattidina plicata belongs to Hyattidina'
  • 'Hypsiptycha belongs to Rhynchotrematinae'
  • 'Isophragma belongs to Isopiiragmatinae'
  • 'Isopiiragmatinae belongs to Leptestiidae'
  • 'Kiaeromena belongs to Leptaenidae'
  • 'Kjerulfina belongs to Rafinesquininae'
  • 'Kjerulfina polycyma belongs to Kjerulfina' according to Bancroft 1929
  • 'Kjerulfina trigonalis belongs to Kjerulfina' according to Bancroft 1929
  • 'Kullervo belongs to Kullervoidae'
  • 'Kullervoidae belongs to Gonambonitacea'
  • 'Leangella belongs to Leptestiinae'
  • 'Leangella discuneata belongs to Leangella'
  • 'Leptaena belongs to Leptaenidae'
  • 'Leptaena etheridgei is recombined as Bilobia etheridgei'
  • 'Leptaena grayae is recombined as Anoptambonites grayae'
  • 'Leptaena kjerulfi is recombined as Kiaeromena kjerulfi'
  • 'Leptaena minuta belongs to Leptaena' according to Kiaer 1926
  • 'Leptaena sericea is recombined as Sowerbyella (Sowerbyella) sericea'
  • 'Leptaena subquadrata is recombined as Christiania subquadrata'
  • 'Leptaenidae belongs to Strophomenacea'
  • 'Leptaenopoma is a subjective synonym of Leptaena'
  • 'Leptellina belongs to Leptellininae'
  • 'Leptellinidae belongs to Plectambonitacea'
  • 'Leptellininae belongs to Leptellinidae'
  • 'Leptestiidae belongs to Plectambonitacea'
  • 'Leptestiina belongs to Leptestiinae'
  • 'Leptestiina prantli belongs to Leptestiina' according to Havlicek 1952
  • 'Lingula attenuata is recombined as Lingulella brevis' according to Portlock 1843
  • 'Lingulella brevis is a subjective synonym of Lingulella brevis'
  • 'Lingulella brevis is a subjective synonym of Lingulella brevis'
  • 'Lingulacea belongs to Lingulida'
  • 'Lingulasma quaestor is recombined as Lingulella quaestor' according to Reed 1917
  • 'Lingulella quaestor is a subjective synonym of Lingulella quaestor' according to Portlock 1843
  • 'Lingulella quaestor is a subjective synonym of Lingulella quaestor'
  • 'Lingulella belongs to Lingulellinae'
  • 'Lingulellinae belongs to Obolidae'
  • 'Lingulida belongs to Inarticulata'
  • 'Linnarssoniinae belongs to Acrotretidae'
  • 'Liostrophia belongs to Parastrophinidae'
  • 'Liostrophia glabra belongs to Liostrophia' according to Cooper and Kindle 1936
  • 'Lordorthis belongs to Hesperorthinae'
  • 'Luhaia belongs to Strophomeninae'
  • 'Luhaia vardi belongs to Luhaia' according to Roomusoks 1956
  • 'Meristellidae belongs to Athyridacea'
  • 'Mimella belongs to Plectorthinae'
  • 'Mjoesina belongs to Glyptomeninae'
  • 'Mjoesina moorei belongs to Mjoesina'
  • 'Nicolella belongs to Productorthinae'
  • 'Obolellina magnifica is recombined as Eodinobolus magnifica'
  • 'Obolidae belongs to Lingulacea'
  • 'Oepikinae belongs to Strophomenidae'
  • 'Onychotreta belongs to Triplesiidae'
  • 'Onychotreta mesleri belongs to Onychotreta' according to Ulrich and Cooper 1936
  • 'Opikina is corrected as Oepikina and belongs to Oepikinae'
  • 'Orbicula elliptica is recombined as Schizotreta elliptica'
  • 'Orbicula forbesi is recombined as Orbiculoidea forbesi'
  • 'Orbiculoidea belongs to Orbiculoideinae'
  • 'Orbiculoidea armstrongi belongs to Orbiculoidea' according to Reed 1952
  • 'Orbiculoidea stincharensis belongs to Orbiculoidea' according to Reed 1917
  • 'Orbiculoidea stincharensis belongs to Orbiculoidea'
  • 'Orbiculoideinae belongs to Discinidae'
  • 'Origostrophia belongs to Stropheodontinae'
  • 'Origostrophia fragilis belongs to Origostrophia'
  • 'Orthacea belongs to Orthina'
  • 'Orthambonites belongs to Orthinae'
  • 'Orthambonites parva is recombined as Paurorthis parva'
  • 'Orthambonites transversa belongs to Orthambonites' according to Dall 1877
  • 'Orthida belongs to Inarticulata'
  • 'Orthidae belongs to Orthacea'
  • 'Orthina belongs to Orthida'
  • 'Orthis actoniae is recombined as Nicolella actoniae'
  • 'Orthis bilobata belongs to Orthis' according to Portlock 1843
  • 'Orthis bisulcata is recombined as Cyclospira bisulcata'
  • 'Orthis cancellata is recombined as Strophomena cancellata'
  • 'Orthis corrugata is replaced by Stropheodonta corrugatella' according to Davidson 1871
  • 'Campylorthis discreta is a subjective synonym of Campylorthis discreta'
  • 'Orthis discreta is recombined as Campylorthis discreta' according to Reed 1952
  • 'Orthis expansa concentrica is recombined as Colaptomena concentrica'
  • 'Orthis fallax is recombined as Schizophorella fallax'
  • 'Orthis gibbosa is recombined as Doleroides gibbosa'
  • 'Campylorthis grandis is a subjective synonym of Campylorthis discreta'
  • 'Orthis intercostata is recombined as Dolerorthis intercostata'
  • 'Orthis lunata is recombined as Mimella rotunda' according to Mitchell 1977
  • 'Mimella rotunda is a subjective synonym of Mimella rotunda'
  • 'Mimella rotunda is a subjective synonym of Mimella rotunda'
  • 'Orthis playfairi is recombined as Orthambonites playfairi'
  • 'Orthis rugifera is recombined as Colaptomena rugifera'
  • 'Orthis scotica is recombined as Plectorthis scotica'
  • 'Oxoplecia belongs to Triplesiidae'
  • 'Oxoplecia calhouni belongs to Oxoplecia' according to Wilson 1913
  • 'Pachyglossella belongs to Glossellinae'
  • 'Palaeostrophomena belongs to Leptestiinae'
  • 'Paracraniops belongs to Craniopsidae'
  • 'Parastrophina belongs to Parastrophinidae'
  • 'Parastrophinidae belongs to Syntrophiidina'
  • 'Paterula belongs to Paterulidae'
  • 'Paterula bohemica belongs to Paterula' according to Barrande 1879
  • 'Paterulidae belongs to Lingulacea'
  • 'Paucicrura belongs to Paurorthidae'
  • 'Paucicrura cristifera belongs to Paucicrura' according to Cooper 1956
  • 'Paurorthidae belongs to Orthida'
  • 'Paurorthis belongs to Paurorthidae'
  • 'Petrocrania belongs to Craniidae'
  • 'Pionodema belongs to Draboviinae'
  • 'Pionodema globosa is recombined as Mimella globosa'
  • 'Plaesiomyidae belongs to Orthida'
  • 'Plaesiomyinae belongs to Plaesiomyidae'
  • 'Plaesiomys belongs to Plaesiomyinae'
  • 'Plaesiomys porcata lata belongs to Plaesiomys porcata'
  • 'Platymena belongs to Glyptomeninae'
  • 'Platymena plana belongs to Platymena' according to Cooper 1956
  • 'Platystrophia belongs to Platystrophinae'
  • 'Platystrophinae belongs to Plectorthidae'
  • 'Plectambonitacea belongs to Strophomenidina'
  • 'Sampo ruralis is a subjective synonym of Sampo ruralis'
  • 'Plectambonites ruralis is recombined as Sampo ruralis' according to Reed 1917
  • 'Plectatrypa is corrected as Plectatrypa and belongs to Carinatininae'
  • 'Plectatrypa hibernica belongs to Plectatrypa' according to Reed 1952
  • 'Plectoglossa belongs to Glossellinae'
  • 'Plectoglossa oklahomensis belongs to Plectoglossa'
  • 'Plectorthidae belongs to Orthida'
  • 'Plectorthinae belongs to Plectorthidae'
  • 'Plectorthis belongs to Plectorthinae'
  • 'Plectorthis nicklesi is recombined as Eridorthis nicklesi'
  • 'Pomeromena belongs to Leptaenidae'
  • 'Pomeromena transversa belongs to Pomeromena'
  • 'Porambonites ottawaensis is recombined as Drepanorhyncha ottawaensis'
  • 'Producta tenuicincta is recombined as Christiania tenuicincta' according to Reed 1952
  • 'Productorthinae belongs to Orthidae'
  • 'Protozyga belongs to Zygospirinae'
  • 'Ptychoglyptus ambiguus is recombined as Sowerbyella (Rugosowerbyella) ambigua'
  • 'Ptychopleurella belongs to Glyptorthinae'
  • 'Rafinesquininae belongs to Strophomenidae'
  • 'Rhactomena belongs to Leptaenidae'
  • 'Rhactomena splendens belongs to Rhactomena'
  • 'Rhynchonellacea belongs to Rhynchonellida'
  • 'Rhynchotrema belongs to Rhynchotrematinae'
  • 'Rhynchotrema plicata is corrected as Rhynchotrema plicatum and belongs to Rhynchotrema'
  • 'Rhynchotrema simulatum is recombined as Rostricellula simulata' according to Reed 1952
  • 'Rostricellula simulata is a subjective synonym of Rostricellula simulata'
  • 'Rhynchotrematidae belongs to Rhynchonellacea'
  • 'Rhynchotrematinae belongs to Rhynchotrematidae'
  • 'Rostricellula belongs to Trigonorhynchiidae'
  • 'Salopina belongs to Draboviinae'
  • 'Salopina ordovicica belongs to Salopina'
  • 'Sampo belongs to Leptellinidae'
  • 'Sampo hiiuensis belongs to Sampo' according to Opik 1933
  • 'Scaphorthis belongs to Plectorthinae'
  • 'Schizophorella belongs to Plectorthinae'
  • 'Schizophorella fallax fallax belongs to Schizophorella fallax' according to Salter 1846
  • 'Schizophoriidae belongs to Enteletacea'
  • 'Schizotreta belongs to Orbiculoideinae'
  • 'Schizotreta corrugata belongs to Schizotreta' according to Cooper 1956
  • 'Skenidiidae belongs to Orthida'
  • 'Skenidioides belongs to Skenidiidae'
  • 'Skenidioides billingsi belongs to Skenidioides' according to Schuchert and Cooper 1931
  • 'Skenidioides elongatus belongs to Skenidioides' according to Cooper 1956
  • 'Skenidioides greenhoughi belongs to Skenidioides' according to Reed 1917
  • 'Sowerbyella belongs to Sowerbyellinae'
  • 'Sowerbyella (Viruella) belongs to Sowerbyella' according to Roomusoks 1959
  • 'Sowerbyella monilifera belongs to Sowerbyella'
  • 'Sowerbyella precursor is recombined as Eoplectodonta precursor'
  • 'Sowerbyellidae belongs to Strophomenida'
  • 'Sowerbyellinae belongs to Sowerbyellidae'
  • 'Sowerbyites belongs to Leptestiinae'
  • 'Sowerbyites hibernicus belongs to Sowerbyites'
  • 'Sowerbyites medioseptatus belongs to Sowerbyites' according to Teichert 1937
  • 'Streptis belongs to Triplesiidae'
  • 'Stropheodonta corrugatella is recombined as Gunnarella corrugatella'
  • 'Stropheodontidae belongs to Strophomenida'
  • 'Stropheodontinae belongs to Stropheodontidae'
  • 'Strophomena belongs to Strophomeninae'
  • 'Strophomena concava is recombined as Palaeostrophomena concava'
  • 'Orthis corrugata is replaced by Stropheodonta corrugatella' according to Davidson 1871
  • 'Strophomena corrugata is recombined as Gunnarella corrugata'
  • 'Strophomena deflecta is recombined as Campylorthis deflecta'
  • 'Strophomena norvegica lata belongs to Strophomena norvegica' according to Williams 1962
  • 'Strophomena rugosa belongs to Strophomena' according to de Blainville 1825
  • 'Strophomenacea belongs to Strophomenida'
  • 'Strophomenida belongs to Articulata'
  • 'Strophomenidae belongs to Strophomenacea'
  • 'Strophomenidina belongs to Strophomenida'
  • 'Strophomeninae belongs to Strophomenidae'
  • 'Syntrophiidina belongs to Pentamerida'
  • 'Taphrorthis belongs to Orthinae'
  • 'Taphrorthis emarginata belongs to Taphrorthis' according to Cooper 1956
  • 'Terebratula grayii is recombined as Streptis grayii'
  • 'Terebratula imbricata is recombined as Plectatrypa imbricata'
  • 'Terebratula semicircularis is recombined as Cyrtonotella semicircularis'
  • 'Thaerodonta is a subjective synonym of Eoplectodonta'
  • 'Titanambonites belongs to Leptestiinae'
  • 'Titanambonites medius belongs to Titanambonites' according to Cooper 1956
  • 'Trigonirhynchiidae [misspelled as Trigonorhynchiidae] belongs to Rhynchonellacea'
  • 'Trimerellacea belongs to Lingulida'
  • 'Trimerellidae belongs to Trimerellacea'
  • 'Trimurellina belongs to Leptellininae'
  • 'Trimurellina superba belongs to Trimurellina'
  • 'Triplesia belongs to Triplesiidae'
  • 'Triplesia grayiae is recombined as Epacroplecia grayiae'
  • 'Triplesiacea belongs to Triplesiidina'
  • 'Triplesiidae belongs to Triplesiacea'
  • 'Triplesiidina belongs to Orthida'
  • 'Tyronella belongs to Tyronellidae'
  • 'Tyronella killeyensis belongs to Tyronella'
  • 'Tyronellidae belongs to Orthida'
  • 'Vellamo belongs to Clitambonitinae'
  • 'Zygospirinae belongs to Atrypidae'