Opinions from D. Hill 1981
- 'Acaciapora belongs to Pachyporidae'
- 'Acanthochaetetidae belongs to Chaetetida'
- 'Acanthohalysites belongs to Halysitinae'
- 'Acanthophyllia belongs to Cyathophyllidae'
- 'Acanthophyllum belongs to Ptenophyllinae'
- 'Acdalopora belongs to Plasmoporellidae'
- 'Acidolites belongs to Coccoserididae'
- 'Acinophyllum belongs to Cylindrophyllinae'
- 'Acmophyllum belongs to Ptenophyllinae'
- 'Acrocyathinae belongs to Lithostrotionidae'
- 'Acrocyathus belongs to Acrocyathinae'
- 'Acrophyllidae belongs to Streptelasmatina'
- 'Acrophyllum belongs to Acrophyllidae'
- 'Actinocyathus belongs to Axophyllidae'
- 'Actinocystinae belongs to Ptenophyllidae'
- 'Actinophrentis belongs to Antiphyllinae'
- 'Actinopora belongs to Syringolitidae'
- 'Adamanophyllidae belongs to Plerophyllina'
- 'Adamanophyllinae belongs to Adamanophyllidae'
- 'Adamanophyllum belongs to Adamanophyllinae'
- 'Adaverina belongs to Aulocystidae'
- 'Adetopora belongs to Aulocystidae'
- 'Adradosia belongs to Adradosiinae'
- 'Adradosiinae belongs to Hapsiphyllidae'
- 'Aemulophyllum belongs to Zaphrentidae'
- 'Agetolitella belongs to Agetolitidae'
- 'Agetolites belongs to Agetolitidae'
- 'Agetolitidae belongs to Favositicae'
- 'Ainia belongs to Romingeriidae'
- 'Akagophyllum belongs to Waagenophyllinae'
- 'Akiyosiphyllum belongs to Lithostrotioninae'
- 'Aknisophyllum belongs to Streptelasmatinae'
- 'Alaiophyllum belongs to Disphyllinae'
- 'Alleynia belongs to Laccophyllinae'
- 'Allophyllum belongs to Hapsiphyllinae'
- 'Allotropiophyllum belongs to Hapsiphyllinae'
- 'Altaiophyllum belongs to Streptelasmatinae'
- 'Altaja belongs to Entelophyllidae'
- 'Alveolites belongs to Alveolitinae'
- 'Amandaraia belongs to Polycoeliinae'
- 'Amandophyllum belongs to Durhaminidae'
- 'Amaraphyllum belongs to Disphyllinae'
- 'Amniopora belongs to Pyrgiidae'
- 'Amphilites belongs to Pseudoplasmoporidae'
- 'Amplexidae belongs to Stauriina'
- 'Amplexiphyllum belongs to Stereolasmatidae'
- 'Amplexizaphrentis belongs to Hapsiphyllinae'
- 'Amplexocarinia belongs to Amplexocariniinae'
- 'Amplexocariniinae belongs to Laccophyllidae'
- 'Amplexoides belongs to Amplexidae'
- 'Amsassia belongs to Cryptolichenariidae'
- 'Amsdenoides belongs to Amsdenoididae'
- 'Amsdenoididae belongs to Streptelasmatina'
- 'Amygdalophyllidium belongs to Pseudopavoninae'
- 'Amygdalophylloides belongs to Geyerophyllidae'
- 'Angullophyllum belongs to Arachnophyllidae'
- 'Angustiphyllum belongs to Homalophyllinae'
- 'Anisophyllidae belongs to Plerophyllina'
- 'Anisophyllum belongs to Anisophyllidae'
- 'Ankhelasma belongs to Zaphrentoidinae'
- 'Antheria belongs to Petalaxidae'
- 'Antherolites belongs to Antherolitinae'
- 'Antherolitinae belongs to Multisoleniidae'
- 'Antholites belongs to Granulidictyinae'
- 'Antikinkaidia belongs to Pentaphyllinae'
- 'Antiphyllidae belongs to Stereolasmatina'
- 'Antiphyllinae belongs to Antiphyllidae'
- 'Aphraxonia belongs to Disphyllinae'
- 'Aphroidophyllum belongs to Ptenophyllinae'
- 'Aphrophyllidae belongs to Aulophyllina'
- 'Aphrophylloides belongs to Aphrophyllidae'
- 'Aphrophyllum belongs to Aphrophyllidae'
- 'Aphyllum belongs to Tryplasmatinae'
- 'Arachnastraea belongs to Yatsengiinae'
- 'Arachniophyllum belongs to Dibunophyllinae'
- 'Arachnolasma belongs to Dibunophyllinae'
- 'Arachnolasmella belongs to Amygdalophyllinae'
- 'Arachnophyllidae belongs to Arachnophyllina'
- 'Arachnophyllina belongs to Stauriida'
- 'Arachnophyllum belongs to Arachnophyllidae'
- 'Araeopoma belongs to Goniophyllidae'
- 'Araeopora belongs to Cleistoporidae'
- 'Araiostrotion belongs to Cleistoporidae'
- 'Archaeozaphrentis belongs to Streptelasmatinae'
- 'Archypora belongs to Caliaporinae'
- 'Arctophyllum belongs to Cyathopsidae'
- 'Argutastrea belongs to Disphyllinae'
- 'Aristophyllum belongs to Disphyllinae'
- 'Armalites belongs to Roemeriidae'
- 'Aspasmophyllinae belongs to Halliidae'
- 'Aspasmophyllum belongs to Aspasmophyllinae'
- 'Asperophyllum belongs to Cystiphyllidae'
- 'Asserculinia belongs to Metriophyllidae'
- 'Asterobillingsia belongs to Cylindrophyllinae'
- 'Asthenophyllum belongs to Streptelasmatinae'
- 'Astrictophyllum belongs to Stauriidae'
- 'Astrocerium belongs to Favositinae'
- 'Atrochaetetes belongs to Chaetetidae'
- 'Aulina belongs to Aulininae'
- 'Aulininae belongs to Lithostrotionidae'
- 'Aulocaulis belongs to Auloporidae'
- 'Aulocystella belongs to Aulocystidae'
- 'Aulocystidae belongs to Auloporicae'
- 'Aulocystis belongs to Aulocystidae'
- 'Aulohelia belongs to Auloheliidae'
- 'Auloheliidae belongs to Auloporicae'
- 'Aulokoninckophyllum belongs to Aulininae'
- 'Aulophyllidae belongs to Aulophyllina'
- 'Aulophyllina belongs to Stauriida'
- 'Auloporella belongs to Auloporidae'
- 'Auloporicae belongs to Auloporida'
- 'Auloporidae belongs to Auloporicae'
- 'Aulostegites belongs to Aulocystidae'
- 'Aulostylus belongs to Aulininae'
- 'Aulozoa belongs to Auloporidae'
- 'Australophyllum belongs to Ptenophyllinae'
- 'Avicenia belongs to Proheliolitidae'
- 'Axiphoria belongs to Streptelasmatinae'
- 'Axoclisia belongs to Clisiophyllinae'
- 'Axolasma belongs to Streptelasmatinae'
- 'Axolithophyllum belongs to Geyerophyllidae'
- 'Axophyllidae belongs to Lonsdaleiina'
- 'Axophyllum belongs to Axophyllidae'
- 'Axuolites belongs to Caliaporinae'
- 'Baikitolites belongs to Lyoporinae'
- 'Bainbridgia belongs to Pyrgiidae'
- 'Baitalites belongs to Proporidae'
- 'Bajgolia belongs to Bajgoliidae'
- 'Bajgoliidae belongs to Auloporicae'
- 'Barrandeolites belongs to Tiverinidae'
- 'Barrandeophyllum belongs to Laccophyllinae'
- 'Barylasma belongs to Baryphyllinae'
- 'Baryphyllinae belongs to Plerophyllidae'
- 'Baryphyllum belongs to Baryphyllinae'
- 'Barytichisma belongs to Hapsiphyllinae'
- 'Basleophyllum belongs to Zaphrentoidinae'
- 'Bauneia belongs to Chaetetidae'
- 'Bayhaium belongs to Roemeriidae'
- 'Beaumontia belongs to Micheliniinae'
- 'Beiliupora belongs to Favositinae'
- 'Bensonastraea belongs to Phillipsastreidae'
- 'Berkhia belongs to Aulophyllinae'
- 'Bethanyphyllidae belongs to Cyathophyllina'
- 'Bethanyphyllum belongs to Bethanyphyllidae'
- 'Bibucia belongs to Pyrgiidae'
- 'Bifossularia belongs to Uraliniidae'
- 'Billingsaria belongs to Billingsariinae'
- 'Billingsariidae belongs to Sarcinulida'
- 'Billingsariinae belongs to Billingsariidae'
- 'Biphyllum belongs to Dibunophyllinae'
- 'Bitraria belongs to Laccophyllinae'
- 'Blastochaetetes belongs to Chaetetidae'
- 'Blothrophyllum belongs to Papiliophyllinae'
- 'Blysmatophyllum belongs to Endophyllidae'
- 'Bogimbailites belongs to Taeniolitidae'
- 'Bojocyclus belongs to Palaeocyclidae'
- 'Boolelasma belongs to Laccophyllinae'
- 'Bordenia belongs to Amplexidae'
- 'Borelasma belongs to Streptelasmatidae'
- 'Bothroclisia belongs to Bothrophyllidae'
- 'Bothrophyllidae belongs to Caniniina'
- 'Bothrophyllum belongs to Bothrophyllidae'
- 'Bowanophyllum belongs to Tryplasmatinae'
- 'Bowenelasma belongs to Streptelasmatinae'
- 'Bractea belongs to Emmonsiinae'
- 'Bradyphyllum belongs to Antiphyllinae'
- 'Breviphrentis belongs to Breviphyllinae'
- 'Breviphyllinae belongs to Streptelasmatidae'
- 'Breviphyllum belongs to Breviphyllinae'
- 'Breviseptophyllum belongs to Spongonariinae'
- 'Briantelasma belongs to Streptelasmatinae'
- 'Briantia belongs to Mucophyllidae'
- 'Bucanophyllum belongs to Cystiphyllidae'
- 'Bulvankeriphyllum belongs to Kodonophyllidae'
- 'Calamopora is a subjective synonym of Paleofavosites'
- 'Calapoecia belongs to Calapoeciinae'
- 'Calapoeciinae belongs to Syringophyllidae'
- 'Caliapora belongs to Caliaporinae'
- 'Caliaporinae belongs to Alveolitidae'
- 'Calmiussiphyllum belongs to Bothrophyllidae'
- 'Calophylloides belongs to Polycoeliinae'
- 'Calophyllum (Groenlandophyllum) was reranked as Groenlandophyllum and belongs to Polycoeliinae'
- 'Calostylicae belongs to Calostylina'
- 'Calostylidae belongs to Calostylicae'
- 'Calostylina belongs to Stauriida'
- 'Campophyllidae belongs to Cyathophyllina'
- 'Campophyllum belongs to Campophyllidae'
- 'Camptolithus belongs to Plasmoporellidae'
- 'Camurophyllum belongs to Lykophyllidae'
- 'Canadiphyllum belongs to Hapsiphyllinae'
- 'Caninella belongs to Bothrophyllidae'
- 'Caniniina belongs to Stauriida'
- 'Caninophyllum belongs to Bothrophyllidae'
- 'Caninostrotion belongs to Dibunophyllinae'
- 'Cannapora belongs to Syringoporidae'
- 'Capnophyllum belongs to Eridophyllinae'
- 'Carinotachylasma belongs to Pentaphyllinae'
- 'Carinthiaphyllum belongs to Geyerophyllidae'
- 'Carlinastraea belongs to Spongophyllidae'
- 'Carnegiea belongs to Chaetetinae'
- 'Carniaphyllum belongs to Geyerophyllidae'
- 'Carruthersella belongs to Amygdalophyllinae'
- 'Catactotoechus belongs to Neaxoninae'
- 'Celechopora belongs to Pachyporidae'
- 'Centristela belongs to Centristelidae'
- 'Centristelidae belongs to Stauriina'
- 'Ceratophyllum belongs to Disphyllinae'
- 'Ceriaster belongs to Stauriidae'
- 'Ceriocysta belongs to Cystiphyllidae'
- 'Chaetetella belongs to Chaetetinae'
- 'Chaetetella (Chaetetiporella) belongs to Chaetetella' according to Sokolov 1950
- 'Chaetetella (Chaetetiporella) belongs to Chaetetella'
- 'Chaetetes belongs to Chaetetinae'
- 'Chaetetes (Boswellia) belongs to Chaetetes' according to Sokolov 1939
- 'Chaetetes (Boswellia) belongs to Chaetetes'
- 'Chaetetida belongs to Tabulata'
- 'Chaetetidae belongs to Chaetetida'
- 'Chaetetinae belongs to Chaetetidae'
- 'Chaetetipora belongs to Chaetetiporinae'
- 'Chaetetiporinae belongs to Chaetetidae'
- 'Chalcidophyllum belongs to Disphyllinae'
- 'Charactophyllum belongs to Disphyllinae'
- 'Chavsakia belongs to Ketophyllidae'
- 'Chia belongs to Syringoporidae'
- 'Chielasma belongs to Waagenophyllinae'
- 'Chihsiaphyllum belongs to Waagenophyllinae'
- 'Chlamydophyllum belongs to Kodonophyllidae'
- 'Chonaxis belongs to Acrocyathinae'
- 'Chonophyllum belongs to Arachnophyllidae'
- 'Chonostegites belongs to Chonostegitidae'
- 'Chonostegitidae belongs to Syringoporicae'
- 'Cionodendron belongs to Lithostrotioninae'
- 'Circophyllum belongs to Kodonophyllidae'
- 'Circumtextiphyllum belongs to Columnariidae'
- 'Cladochonus belongs to Pyrgiidae'
- 'Cladopora belongs to Pachyporidae'
- 'Clavilasma belongs to Antiphyllinae'
- 'Claviphyllum belongs to Antiphyllinae'
- 'Cleistoporidae belongs to Favositicae'
- 'Clinophyllum belongs to Hapsiphyllinae'
- 'Clisiophyllinae belongs to Aulophyllidae'
- 'Clisiophyllum belongs to Clisiophyllinae'
- 'Coccoseridicae belongs to Heliolitina'
- 'Coccoserididae belongs to Coccoseridicae'
- 'Coccoseris belongs to Coccoserididae'
- 'Coelolasma belongs to Coelostylinae'
- 'Coelostylinae belongs to Lambelasmatidae'
- 'Coelostylis belongs to Coelostylinae'
- 'Coenaphrodia belongs to Aphrophyllidae'
- 'Coleophyllum belongs to Cystiphyllidae'
- 'Columnaria belongs to Columnariidae'
- 'Columnariidae belongs to Columnariina'
- 'Columnariina belongs to Stauriida'
- 'Columnaxon belongs to Cyathaxoniidae'
- 'Columnolasma belongs to Stauriidae'
- 'Columnoporella belongs to Calapoeciinae'
- 'Combophyllidae belongs to Metriophyllina'
- 'Combophyllum belongs to Combophyllidae'
- 'Commutatophyllum belongs to Cyathophyllidae'
- 'Commutia belongs to Commutiinae'
- 'Commutiinae belongs to Pentaphyllidae'
- 'Compressiphyllum belongs to Homalophyllinae'
- 'Conopoterium belongs to Micheliniinae'
- 'Contortophyllum belongs to Expressophyllidae'
- 'Copia belongs to Dibunophyllinae'
- 'Coronoruga is a subjective synonym of Cystiphyllum'
- 'Corphalia belongs to Thysanophyllinae'
- 'Corrugopora belongs to Theciidae'
- 'Corwenia belongs to Dibunophyllinae'
- 'Cosmiolithus belongs to Stelliporellidae'
- 'Coxia is a subjective synonym of Calapoecia'
- 'Crassialveolites belongs to Alveolitinae'
- 'Crassilasma belongs to Dinophyllinae'
- 'Crataniophyllum belongs to Cyathopsidae'
- 'Craterophyllum belongs to Arachnophyllidae'
- 'Cravenia belongs to Verbeekiellidae'
- 'Crenulipora belongs to Favositinae'
- 'Crenulites belongs to Stauriidae'
- 'Crista belongs to Fasciphyllidae'
- 'Cronyphyllum belongs to Kodonophyllidae'
- 'Cryptolichenaria belongs to Cryptolichenariidae'
- 'Cryptolichenariidae belongs to Chaetetida'
- 'Cumminsia belongs to Cumminsiinae'
- 'Cumminsiinae belongs to Zaphrentoididae'
- 'Cyathactis belongs to Ptychophyllidae'
- 'Cyathaxonella belongs to Cyathaxoniidae'
- 'Cyathaxoniidae belongs to Metriophyllina'
- 'Cyathoclisia belongs to Clisiophyllinae'
- 'Cyathocylindrium belongs to Zaphrentidae'
- 'Cyathocylindrum is a misspelling of Cyathocylindrium'
- 'Cyathopaedium belongs to Pycnostylidae'
- 'Cyathophyllidae belongs to Cyathophyllina'
- 'Cyathophyllina belongs to Stauriida'
- 'Cyathophyllum (Orthocyathus) was reranked as Orthocyathus and belongs to Cyathophyllidae'
- 'Cyathopsidae belongs to Caniniina'
- 'Cylindrophyllinae belongs to Eridophyllidae'
- 'Cylindrophyllum belongs to Cylindrophyllinae'
- 'Cylindrostylus belongs to Multithecoporidae'
- 'Cymatelasma belongs to Actinocystinae'
- 'Cymatella belongs to Actinocystinae'
- 'Cyrtophyllidae belongs to Proporicae'
- 'Cyrtophyllum belongs to Cyrtophyllidae'
- 'Cystelasma belongs to Pentaphyllinae'
- 'Cystilasma is a subjective synonym of Cystiphyllum'
- 'Cystilophophyllum belongs to Dibunophyllinae'
- 'Cystipaliphyllum belongs to Paliphyllidae'
- 'Cystiphorolites belongs to Holmophyllidae'
- 'Cystiphyllida belongs to Rugosa'
- 'Cystiphyllidae belongs to Cystiphyllida'
- 'Cystiphylloides (Cladionophyllum) belongs to Cystiphylloides'
- 'Cystiphylloides (Comanaphyllum) belongs to Cystiphylloides'
- 'Cystiphylloides (Skoliophyllum) belongs to Cystiphylloides'
- 'Cystiphyllum (Cruciphyllum) belongs to Cystiphyllum'
- 'Cystiphyllum (Cysticonophyllum) belongs to Cystiphyllum'
- 'Cystiphyllum (Gyalophyllum) belongs to Cystiphyllum'
- 'Cystiphyllum (Gyaloplasma) belongs to Cystiphyllum'
- 'Cystiphyllum (Hedstroemophyllum) belongs to Cystiphyllum'
- 'Cystiphyllum (Zonophyllum) belongs to Cystiphyllum'
- 'Cystitrypanopora belongs to Aulocystidae'
- 'Cystodendropora belongs to Micheliniinae'
- 'Cystophrentis belongs to Uraliniidae'
- 'Czarnockia belongs to Neaxoninae'
- 'Dagmaraephyllum belongs to Cyathopsidae'
- 'Daljanolites belongs to Pachyporidae'
- 'Dalmanophyllinae belongs to Streptelasmatidae'
- 'Dalmanophyllum belongs to Dalmanophyllinae'
- 'Dalnia belongs to Dalniinae'
- 'Dalniinae belongs to Pentaphyllidae'
- 'Darwasophyllum belongs to Geyerophyllidae'
- 'Decaphyllum belongs to Anthozoa'
- 'Deiracorallium belongs to Streptelasmatinae'
- 'Denayphyllum belongs to Spongophyllidae'
- 'Dendrofavosites belongs to Emmonsiinae'
- 'Dendroholmia belongs to Holmophyllidae'
- 'Dendrostella belongs to Stauriidae'
- 'Dendrozoum belongs to Micheliniinae'
- 'Densiphrentis belongs to Streptelasmatinae'
- 'Densiphyllum belongs to Streptelasmatinae'
- 'Dentilasma belongs to Ketophyllidae'
- 'Depasophyllum belongs to Pycnostylidae'
- 'Desmidopora belongs to Desmidoporidae'
- 'Desmidoporidae belongs to Chaetetida'
- 'Diaschophyllum belongs to Dibunophyllinae'
- 'Dibunophyllinae belongs to Aulophyllidae'
- 'Dibunophyllum belongs to Dibunophyllinae'
- 'Dictyofavosites belongs to Favositinae'
- 'Dictyopora belongs to Trachypsammiidae'
- 'Digonophyllidae belongs to Cystiphyllida'
- 'Digonophyllum belongs to Digonophyllidae'
- 'Digonophyllum (Glossophyllum) was reranked as Glossophyllum and belongs to Cyathophyllidae'
- 'Dinophyllinae belongs to Streptelasmatidae'
- 'Dinophyllum belongs to Dinophyllinae'
- 'Diorychopora belongs to Auloporidae'
- 'Diphyphyllinae belongs to Lithostrotionidae'
- 'Diphyphyllum belongs to Diphyphyllinae'
- 'Diplochaetetes belongs to Acanthochaetetidae'
- 'Diplochone belongs to Cystiphyllidae'
- 'Diploepora belongs to Proporidae'
- 'Dipterophyllum belongs to Cumminsiinae'
- 'Disphyllia belongs to Spongonariinae'
- 'Disphyllidae belongs to Columnariina'
- 'Disphyllinae belongs to Disphyllidae'
- 'Disphyllum belongs to Disphyllinae'
- 'Ditoecholasma belongs to Ditoecholasmatidae'
- 'Ditoecholasmatidae belongs to Streptelasmatina'
- 'Dnestrites belongs to Heliolitidae'
- 'Dohmophyllum belongs to Ptenophyllinae'
- 'Dokophyllum belongs to Ketophyllidae'
- 'Donacophyllum belongs to Kyphophyllidae'
- 'Donetzites belongs to Cleistoporidae'
- 'Donophyllum belongs to Yatsengiinae'
- 'Dorlodotia belongs to Thysanophyllinae'
- 'Dubrovia belongs to Actinocystinae'
- 'Ducdonia belongs to Proporidae'
- 'Duncanopora belongs to Thecostegitidae'
- 'Duplophyllum belongs to Hapsiphyllinae'
- 'Durhamina belongs to Durhaminidae'
- 'Durhaminidae belongs to Lithostrotionina'
- 'Dushanophrentis belongs to Disphyllinae'
- 'Dybowskinia belongs to Lambelasmatinae'
- 'Eastonoides belongs to Acrocyathinae'
- 'Echigophyllum belongs to Amygdalophyllinae'
- 'Echyropora belongs to Parastriatoporidae'
- 'Edaphophyllum belongs to Cystiphyllidae'
- 'Egosiella belongs to Pachyporidae'
- 'Ekvasophyllidae belongs to Aulophyllina'
- 'Ekvasophyllum belongs to Ekvasophyllidae'
- 'Embolophyllum belongs to Ptenophyllinae'
- 'Emmonsia belongs to Emmonsiinae'
- 'Emmonsiella belongs to Emmonsiinae'
- 'Emmonsiinae belongs to Favositidae'
- 'Empodesma belongs to Polycoeliinae'
- 'Endamplexidae belongs to Caniniina'
- 'Endamplexus belongs to Endamplexidae'
- 'Endophyllidae belongs to Ketophyllina'
- 'Endophyllum belongs to Endophyllidae'
- 'Endotheciidae belongs to Plerophyllina'
- 'Endothecium belongs to Endotheciidae'
- 'Enigmalites belongs to Syringoporidae'
- 'Enniskillenia is a subjective synonym of Amplexizaphrentis'
- 'Entelophyllidae belongs to Arachnophyllina'
- 'Entelophyllum belongs to Entelophyllidae'
- 'Enterolasma belongs to Enterolasmatinae'
- 'Enterolasmatinae belongs to Streptelasmatidae'
- 'Enygmophyllum belongs to Uraliniidae'
- 'Eocatenipora belongs to Cateniporinae'
- 'Eofletcheria belongs to Lyoporinae'
- 'Eofletcheriella belongs to Fletcheriellidae'
- 'Eoglossophyllum belongs to Disphyllinae'
- 'Eolaminoplasma belongs to Plasmoporidae'
- 'Eolithostrotionella is a subjective synonym of Stelechophyllum'
- 'Eostrotion belongs to Dibunophyllinae'
- 'Epiphanophyllum belongs to Cyathaxoniidae'
- 'Eridophyllidae belongs to Cyathophyllina'
- 'Eridophyllinae belongs to Eridophyllidae'
- 'Eridophyllum belongs to Eridophyllinae'
- 'Erlangbapora belongs to Theciidae'
- 'Estonielasma belongs to Coelostylinae'
- 'Euryphyllum belongs to Hapsiphyllinae'
- 'Evenkiella belongs to Entelophyllidae'
- 'Exilifrons belongs to Paradisphyllinae'
- 'Expressophyllidae belongs to Arachnophyllina'
- 'Faberolasma belongs to Dibunophyllinae'
- 'Faberophyllum belongs to Ekvasophyllidae'
- 'Falsicatenipora belongs to Halysitinae'
- 'Famaxonia belongs to Metriophyllina'
- 'Famennelasma belongs to Hapsiphyllinae'
- 'Farabophyllum belongs to Phillipsastreidae'
- 'Fasciculiamplexus belongs to Zaphrentoidinae'
- 'Fasciculophyllum belongs to Antiphyllinae'
- 'Fasciphyllidae belongs to Ptenophyllina'
- 'Fasciphyllum belongs to Fasciphyllidae'
- 'Favistina belongs to Stauriidae'
- 'Favosichaetetes belongs to Favosichaetetidae'
- 'Favosichaetetidae belongs to Chaetetida'
- 'Favositicae belongs to Favositina'
- 'Favositidae belongs to Favositicae'
- 'Fistulimurina belongs to Chaetetiporinae'
- 'Flagellophyllum belongs to Adamanophyllinae'
- 'Fletcheria belongs to Fletcheriidae'
- 'Fletcheriella belongs to Fletcheriellidae'
- 'Fletcheriellidae belongs to Auloporicae'
- 'Fletcheriidae belongs to Cystiphyllida'
- 'Fletcherina belongs to Pycnostylidae'
- 'Foerstephyllinae belongs to Billingsariidae'
- 'Foerstephyllum belongs to Foerstephyllinae'
- 'Fomichevella belongs to Cyathopsidae'
- 'Fomichevia belongs to Parastriatoporidae'
- 'Fossopora belongs to Theciidae'
- 'Fossoporella belongs to Theciidae'
- 'Frechastraea belongs to Phillipsastreidae'
- 'Friedbergia belongs to Friedbergiinae'
- 'Friedbergiinae belongs to Laccophyllidae'
- 'Fuchungopora belongs to Gorskyitidae'
- 'Gangamophyllum belongs to Axophyllidae'
- 'Gerthia belongs to Polycoeliinae'
- 'Gertholites belongs to Pachyporidae'
- 'Geyerophyllidae belongs to Lonsdaleiina'
- 'Geyerophyllum belongs to Geyerophyllidae'
- 'Gissarophyllum belongs to Paliphyllidae'
- 'Goniophyllidae belongs to Cystiphyllida'
- 'Gorizdronia belongs to Amplexocariniinae'
- 'Gorskyites belongs to Gorskyitidae'
- 'Gorskyitidae belongs to Syringoporicae'
- 'Grabauphyllum belongs to Endophyllidae'
- 'Gracilopora belongs to Pachyporidae'
- 'Grandalveolites belongs to Alveolitinae'
- 'Granulidictyinae belongs to Micheliniidae'
- 'Granulidictyum belongs to Granulidictyinae'
- 'Granulina belongs to Plasmoporellidae'
- 'Grewgiphyllum belongs to Eridophyllinae'
- 'Groessensia belongs to Thecostegitidae'
- 'Gryphophyllum belongs to Ptenophyllinae'
- 'Gshelia belongs to Bothrophyllidae'
- 'Guanziyaopora belongs to Pachyporidae'
- 'Guerichiphyllinae belongs to Laccophyllidae'
- 'Guerichiphyllum belongs to Guerichiphyllinae'
- 'Guizhouchaetetes belongs to Favosichaetetidae'
- 'Guizhoustriatopora belongs to Pachyporidae'
- 'Gurievskiella belongs to Paradisphyllinae'
- 'Gymnophyllum belongs to Metriophyllina'
- 'Hadrophyllidae belongs to Metriophyllina'
- 'Halliidae belongs to Lycophyllina'
- 'Halysitidae belongs to Halysitina'
- 'Halysitina belongs to Heliolitida'
- 'Halysitinae belongs to Halysitidae'
- 'Hamarilopora belongs to Emmonsiinae'
- 'Hankaxis belongs to Ptenophyllinae'
- 'Haplolasma belongs to Dibunophyllinae'
- 'Haplothecia belongs to Hexagonariinae'
- 'Hapsiphyllidae belongs to Stereolasmatina'
- 'Hapsiphyllinae belongs to Hapsiphyllidae'
- 'Hapsiphyllum belongs to Hapsiphyllinae'
- 'Haptophyllum belongs to Petraiidae'
- 'Hattonia belongs to Favositinae'
- 'Hayasakaia belongs to Tetraporellidae'
- 'Heintzella belongs to Dibunophyllinae'
- 'Helenolites belongs to Proporidae'
- 'Helioliticae belongs to Heliolitina'
- 'Heliolitidae belongs to Helioliticae'
- 'Helioplasma belongs to Heliolitidae'
- 'Helioplasmolites belongs to Heliolitidae'
- 'Hemiagetolites is a subjective synonym of Agetolites'
- 'Hemiaulacophyllum belongs to Disphyllinae'
- 'Hercophyllum belongs to Lykophyllidae'
- 'Heritschioides belongs to Durhaminidae'
- 'Heritschioides (Eoheritschioides) belongs to Heritschioides' according to Stevens 1967
- 'Heritschioides (Eoheritschioides) belongs to Heritschioides'
- 'Heterocaninia belongs to Heterocaniniinae'
- 'Heterocaniniinae belongs to Aulophyllidae'
- 'Heterocoenites belongs to Pachyporidae'
- 'Heterocorallia belongs to Rugosa'
- 'Heterolasma belongs to Ketophyllidae'
- 'Heterophaulactis belongs to Cyathophyllidae'
- 'Heterophrentis belongs to Amplexidae'
- 'Heterophyllia belongs to Heterophylliidae'
- 'Heterophyllia (Heterophylloides) belongs to Heterophyllia'
- 'Heterophylliidae belongs to Heterocorallia'
- 'Heterospongophyllum belongs to Spongophyllidae'
- 'Hexagonaria belongs to Hexagonariinae'
- 'Hexagonariinae belongs to Disphyllidae'
- 'Hexalasma belongs to Polycoeliinae'
- 'Hexaphyllia belongs to Heterophylliidae'
- 'Hexismia belongs to Halysitinae'
- 'Hezhangophyllum belongs to Ptenophyllinae'
- 'Hillaepora belongs to Pachyporidae'
- 'Hillaxon belongs to Neaxoninae'
- 'Hillophyllum belongs to Tryplasmatinae'
- 'Hiroshimaphyllum belongs to Pseudopavoninae'
- 'Holacanthia is a subjective synonym of Aphyllum'
- 'Holacanthopora belongs to Micheliniinae'
- 'Holmophyllidae belongs to Cystiphyllida'
- 'Holmophyllum belongs to Holmophyllidae'
- 'Holophragma belongs to Lykophyllidae'
- 'Homalophyllinae belongs to Streptelasmatidae'
- 'Homalophyllites belongs to Zaphrentoidinae'
- 'Homalophyllum belongs to Homalophyllinae'
- 'Hornsundia belongs to Bothrophyllidae'
- 'Houershanophyllum belongs to Cyathophyllidae'
- 'Huangia belongs to Waagenophyllinae'
- 'Huanglongophyllum belongs to Petalaxidae'
- 'Huangophyllum belongs to Polycoeliinae'
- 'Huayunophyllum was reranked as Waagenophyllum (Huayunophyllum) and belongs to Waagenophyllum'
- 'Hunanophrentis belongs to Disphyllinae'
- 'Hyostragulum belongs to Alveolitina'
- 'Ibukiphyllum belongs to Taisyakuphyllinae'
- 'Idiophyllum belongs to Arachnophyllidae'
- 'Imennovia belongs to Ptenophyllinae'
- 'Implicophyllum belongs to Ptychophyllidae'
- 'Innapora belongs to Proporidae'
- 'Iowaphyllum belongs to Endophyllidae'
- 'Ipciphyllum belongs to Waagenophyllinae'
- 'Iranophyllum belongs to Wentzelellinae'
- 'Issolites belongs to Favositinae'
- 'Ivanovia belongs to Petalaxidae'
- 'Ivdelephyllum belongs to Paradisphyllinae'
- 'Jintingophyllum belongs to Geyerophyllidae'
- 'Kabakovitchiella belongs to Laccophyllinae'
- 'Kaljolasma belongs to Streptelasmatinae'
- 'Karagemia belongs to Cyrtophyllidae'
- 'Katranophyllum belongs to Dibunophyllinae'
- 'Kazachiphyllum belongs to Amygdalophyllinae'
- 'Kenophyllum belongs to Streptelasmatinae'
- 'Kerforneidictyum belongs to Micheliniinae'
- 'Keriophylloides belongs to Phillipsastreidae'
- 'Ketophyllidae belongs to Ketophyllina'
- 'Ketophyllina belongs to Stauriida'
- 'Ketophylloides belongs to Ketophyllidae'
- 'Keyserlingophyllum belongs to Uraliniidae'
- 'Khmeria belongs to Khmeriidae'
- 'Khmeriidae belongs to Auloporicae'
- 'Kiaerites belongs to Theciidae'
- 'Kiaerolites belongs to Proheliolitidae'
- 'Kielcephyllidae belongs to Metriophyllina'
- 'Kielcephyllum belongs to Kielcephyllidae'
- 'Kionophyllum belongs to Geyerophyllidae'
- 'Kitakamiia belongs to Alveolitinae'
- 'Kitakamiphyllum belongs to Anthozoa'
- 'Kizilia belongs to Kiziliidae'
- 'Kiziliidae belongs to Stauriina'
- 'Klaamannipora belongs to Favositinae'
- 'Klamathastraea belongs to Endophyllidae'
- 'Kleopatrina belongs to Durhaminidae'
- 'Kobeha belongs to Papiliophyllinae'
- 'Kodonophyllidae belongs to Streptelasmatina'
- 'Kodonophyllum belongs to Kodonophyllidae'
- 'Kolymopora belongs to Parastriatoporidae'
- 'Koninckocarinia belongs to Koninckocariniidae'
- 'Koninckocariniidae belongs to Lonsdaleiina'
- 'Koninckophylloides belongs to Dibunophyllinae'
- 'Koninckophyllum belongs to Dibunophyllinae'
- 'Koreanopora belongs to Proporidae'
- 'Kozlowskinia belongs to Kielcephyllidae'
- 'Kozlowskiocystia belongs to Kozlowskiocystiidae'
- 'Kozlowskiocystiidae belongs to Auloporicae'
- 'Kueichouphyllum belongs to Heterocaniniinae'
- 'Kueichowpora belongs to Syringoporidae'
- 'Kumpanophyllum belongs to Amygdalophyllinae'
- 'Kungejophyllum belongs to Mucophyllidae'
- 'Kunthia belongs to Disphyllinae'
- 'Kusbassophyllum belongs to Cyathopsidae'
- 'Kwangsiphyllum belongs to Diphyphyllinae'
- 'Kymocystis is a subjective synonym of Asperophyllum'
- 'Kyphophyllidae belongs to Ketophyllina'
- 'Kysylagathophyllum belongs to Entelophyllidae'
- 'Labyrinthites belongs to Tetraporellidae'
- 'Laccophyllidae belongs to Metriophyllina'
- 'Laccophyllinae belongs to Laccophyllidae'
- 'Laccophyllum belongs to Laccophyllinae'
- 'Laceripora belongs to Theciidae'
- 'Lambelasma belongs to Lambelasmatinae'
- 'Lambelasmatidae belongs to Calostylicae'
- 'Lambelasmatinae belongs to Lambelasmatidae'
- 'Lambeophyllum belongs to Lambelasmatinae'
- 'Lamellaeoporella belongs to Favositinae'
- 'Laminoplasma belongs to Plasmoporidae'
- 'Lamottia belongs to Lamottiidae'
- 'Lamottiidae belongs to Chaetetida'
- 'Laophyllum was reranked as Iranophyllum (Laophyllum) and belongs to Iranophyllum'
- 'Lecfedites belongs to Emmonsiinae'
- 'Leolasma belongs to Streptelasmatinae'
- 'Leonardophyllum belongs to Verbeekiellidae'
- 'Lessnikovaea belongs to Foerstephyllinae'
- 'Liardiphyllum belongs to Uraliniidae'
- 'Lichenariidae belongs to Chaetetida'
- 'Lindstroemia belongs to Lindstroemiidae'
- 'Lindstroemiidae belongs to Metriophyllina'
- 'Lindstroemophyllum belongs to Amplexidae'
- 'Liscombea belongs to Plasmoporidae'
- 'Lithostrotion belongs to Lithostrotioninae'
- 'Lithostrotionella belongs to Petalaxidae'
- 'Lithostrotionidae belongs to Lithostrotionina'
- 'Lithostrotionina belongs to Stauriida'
- 'Lithostrotioninae belongs to Lithostrotionidae'
- 'Litophyllum belongs to Chaetetinae'
- 'Lobocorallium belongs to Streptelasmatinae'
- 'Longiklava is a misspelling of Longiclava'
- 'Longiclava belongs to Hapsiphyllinae'
- 'Lonsdaleia belongs to Axophyllidae'
- 'Lonsdaleiastraea belongs to Wentzelellinae'
- 'Lonsdaleiina belongs to Stauriida'
- 'Lonsdaleoides belongs to Geyerophyllidae'
- 'Loomberaphyllum belongs to Cyathophyllidae'
- 'Lophamplexus belongs to Lophophyllidae'
- 'Lophocarinophyllum belongs to Lophophyllidae'
- 'Lopholasma belongs to Stereolasmatidae'
- 'Lophophrentis belongs to Dibunophyllinae'
- 'Lophophyllidae belongs to Plerophyllina'
- 'Lophophyllidium belongs to Lophophyllidae'
- 'Lophophyllum belongs to Lophophyllidae'
- 'Lophotichium belongs to Cyathaxoniidae'
- 'Lublinophyllum belongs to Cyathopsidae'
- 'Lycophyllina belongs to Stauriida'
- 'Lykophyllidae belongs to Lycophyllina'
- 'Lyliophyllum belongs to Metriophyllina'
- 'Lyrielasma belongs to Ptenophyllinae'
- 'Lytvolasma belongs to Antiphyllinae'
- 'Lytvophyllum belongs to Petalaxidae'
- 'Mackenziephyllum belongs to Cystiphyllidae'
- 'Maikottaphyllum belongs to Kyphophyllidae'
- 'Maikottia belongs to Tryplasmatinae'
- 'Manipora belongs to Paleofavositinae'
- 'Mansuyphyllum belongs to Cyathophyllidae'
- 'Marisastrum belongs to Hexagonariinae'
- 'Mariusilites belongs to Emmonsiinae'
- 'Martinophyllum belongs to Paradisphyllinae'
- 'Mastopora belongs to Auloporidae'
- 'Maurenia belongs to Cleistoporidae'
- 'Mazaphyllum belongs to Holmophyllidae'
- 'Mcleodea belongs to Plasmoporellidae'
- 'Medinophyllum belongs to Entelophyllidae'
- 'Meitanopora belongs to Gorskyitidae'
- 'Melanophyllidium belongs to Kiziliidae'
- 'Melanophyllum belongs to Cyathopsidae'
- 'Melrosia belongs to Stringophyllidae'
- 'Meniscophyllum belongs to Hapsiphyllinae'
- 'Menophyllum belongs to Cyathopsidae'
- 'Merlewoodia belongs to Aphrophyllidae'
- 'Mesofavosites belongs to Paleofavositinae'
- 'Mesolites belongs to Pachyfavositinae'
- 'Mesophyllum belongs to Digonophyllidae'
- 'Mesophyllum (Cystiphylloides) was reranked as Cystiphylloides and belongs to Cystiphyllidae'
- 'Mesophyllum (Zonodigonophyllum) belongs to Mesophyllum'
- 'Mesosolenia belongs to Multisoleniinae'
- 'Mesouralinia belongs to Holmophyllidae'
- 'Mesouralina is a misspelling of Mesouralinia'
- 'Metrionaxon belongs to Laccophyllinae'
- 'Metriophyllidae belongs to Metriophyllina'
- 'Metriophyllina belongs to Stauriida'
- 'Metrioplexus belongs to Metriophyllidae'
- 'Michelinia (Protomichelinia) was reranked as Protomichelinia and belongs to Micheliniinae'
- 'Micheliniidae belongs to Favositicae'
- 'Mictocystis belongs to Endophyllidae'
- 'Mictophyllum belongs to Cyathophyllidae'
- 'Micula belongs to Expressophyllidae'
- 'Miculiella belongs to Expressophyllidae'
- 'Migmatophyllum belongs to Entelophyllidae'
- 'Minatoa belongs to Durhaminidae'
- 'Minussiella belongs to Disphyllinae'
- 'Modesta belongs to Stauriidae'
- 'Mongoliolites belongs to Sibiriolitidae'
- 'Moravophyllum belongs to Cyathophyllidae'
- 'Moskovia belongs to Moskoviinae'
- 'Moskoviinae belongs to Chaetetidae'
- 'Mucophyllidae belongs to Streptelasmatina'
- 'Mucophyllum belongs to Mucophyllidae'
- 'Multicarinophyllum belongs to Amsdenoididae'
- 'Multisolenia belongs to Multisoleniinae'
- 'Multisoleniidae belongs to Favositicae'
- 'Multisoleniinae belongs to Multisoleniidae'
- 'Multithecopora belongs to Multithecoporidae'
- 'Multithecoporidae belongs to Syringoporicae'
- 'Nadotia belongs to Stauriidae'
- 'Nagatophyllum belongs to Dibunophyllinae'
- 'Nalivkinella belongs to Amplexocariniinae'
- 'Nanshanophyllum belongs to Entelophyllidae'
- 'Naoides belongs to Aphrophyllidae'
- 'Naos belongs to Arachnophyllidae'
- 'Nataliella belongs to Ketophyllidae'
- 'Natalophyllinae belongs to Alveolitidae'
- 'Natalophyllum belongs to Natalophyllinae'
- 'Neaxon belongs to Neaxoninae'
- 'Neaxonella belongs to Neaxoninae'
- 'Neaxoninae belongs to Laccophyllidae'
- 'Nemistium belongs to Diphyphyllinae'
- 'Neobrachyelasma belongs to Dinophyllinae'
- 'Neoclisiophyllum belongs to Clisiophyllinae'
- 'Neocolumnaria belongs to Neocolumnariidae'
- 'Neocolumnariidae belongs to Stauriina'
- 'Neocystiphyllum belongs to Lykophyllidae'
- 'Neofletcheriella belongs to Fletcheriellidae'
- 'Neokoninckophyllum belongs to Dibunophyllinae'
- 'Neokyphophyllum belongs to Kyphophyllidae'
- 'Neomphyma belongs to Ptenophyllinae'
- 'Neomultithecopora belongs to Multithecoporidae'
- 'Neopaliphyllum belongs to Paliphyllidae'
- 'Neoroemeria belongs to Thecostegitidae'
- 'Neospongophylloides belongs to Endophyllidae'
- 'Neosyringopora belongs to Gorskyitidae'
- 'Neotabularia belongs to Stauriidae'
- 'Neotryplasma belongs to Tryplasmatinae'
- 'Neovepresiphyllum belongs to Spongophyllidae'
- 'Neowormsipora belongs to Plasmoporellidae'
- 'Neozaphrentis belongs to Hapsiphyllinae'
- 'Nephelophyllum belongs to Petalaxidae'
- 'Nervophyllum belongs to Aulophyllinae'
- 'Nevadaphyllinae belongs to Streptelasmatidae'
- 'Nevadaphyllum belongs to Nevadaphyllinae'
- 'Niajuphyllum belongs to Kodonophyllidae'
- 'Nicholsoniella belongs to Amplexocariniinae'
- 'Ningnanophyllum belongs to Calostylidae'
- 'Ningqiangolites belongs to Heliolitidae'
- 'Ningqiangophyllum belongs to Arachnophyllidae'
- 'Nipponophyllum belongs to Holmophyllidae'
- 'Nodophyllum belongs to Holmophyllidae'
- 'Nodulipora belongs to Desmidoporidae'
- 'Nothaphrophyllum belongs to Aphrophyllidae'
- 'Numidiaphyllum belongs to Anthozoa'
- 'Nyctopora belongs to Lyoporinae'
- 'Oculinella belongs to Trachypsammiidae'
- 'Oculipora belongs to Caliaporinae'
- 'Ogilvilasma belongs to Streptelasmatinae'
- 'Oharaia belongs to Syringoporidae'
- 'Ohnopora belongs to Syringolitidae'
- 'Okopites belongs to Heliolitidae'
- 'Oligophylloides belongs to Heterophylliidae'
- 'Oligophyllum belongs to Pentaphyllinae'
- 'Oliveria belongs to Acervulariidae'
- 'Omiphyllum belongs to Pseudopavoninae'
- 'Onychophyllum belongs to Lykophyllidae'
- 'Opiphyllum belongs to Diphyphyllinae'
- 'Orionastraea belongs to Lithostrotioninae'
- 'Ornatophyllum belongs to Entelophyllidae'
- 'Ortholites belongs to Thecostegitidae'
- 'Orthophyllum belongs to Rugosa'
- 'Orygmophyllum belongs to Dibunophyllinae'
- 'Ozakiphyllum belongs to Pseudopavoninae'
- 'Ozopora belongs to Favositinae'
- 'Pachycanalicula belongs to Heliolitidae'
- 'Pachyfavosites belongs to Pachyfavositinae'
- 'Pachyfavositinae belongs to Favositidae'
- 'Pachyhelioplasma belongs to Pseudoplasmoporidae'
- 'Pachylites belongs to Parastriatoporidae'
- 'Pachyphragma belongs to Aulocystidae'
- 'Pachypora belongs to Pachyporidae'
- 'Pachyporicae belongs to Favositina'
- 'Pachyporidae belongs to Pachyporicae'
- 'Pachystelliporella belongs to Stelliporellidae'
- 'Pachystriatopora belongs to Pachyporidae'
- 'Pachytheca belongs to Chaetetinae'
- 'Paeckelmannopora belongs to Heliolitidae'
- 'Palaeacidae belongs to Favositicae'
- 'Palaeacis belongs to Palaeacidae'
- 'Palaeocorolites belongs to Theciidae'
- 'Palaeocyathus belongs to Enterolasmatinae'
- 'Palaeocyclidae belongs to Cystiphyllida'
- 'Palaeocyclus belongs to Palaeocyclidae'
- 'Palaeoentelophyllum belongs to Stauriidae'
- 'Palaeofavosipora belongs to Palaeofavosiporidae'
- 'Palaeofavosiporidae belongs to Auloporicae'
- 'Palaeolithostrotion belongs to Stauriidae'
- 'Palaeoporites belongs to Palaeoporitidae'
- 'Palaeoporitidae belongs to Coccoseridicae'
- 'Palaeosmilia belongs to Palaeosmiliidae'
- 'Palaeosmiliidae belongs to Aulophyllina'
- 'Palastraea belongs to Palaeosmiliidae'
- 'Paleoalveolites belongs to Paleoalveolitidae'
- 'Paleoalveolitidae belongs to Tetradiida'
- 'Paleofavosites belongs to Paleofavositinae'
- 'Paleofavositinae belongs to Favositidae'
- 'Paleogrypophyllum belongs to Ptenophyllinae'
- 'Paliphyllidae belongs to Streptelasmatina'
- 'Paliphyllum belongs to Paliphyllidae'
- 'Pamirophyllum belongs to Durhaminidae'
- 'Papiliophyllinae belongs to Halliidae'
- 'Papiliophyllum belongs to Papiliophyllinae'
- 'Paraaulina belongs to Aulininae'
- 'Parabrachyelasma belongs to Streptelasmatinae'
- 'Paracaninia belongs to Cyathopsidae'
- 'Paracarruthersella belongs to Geyerophyllidae'
- 'Paracystiphylloides belongs to Digonophyllidae'
- 'Paradisphyllinae belongs to Disphyllidae'
- 'Paradisphyllum belongs to Paradisphyllinae'
- 'Parafavosites belongs to Syringolitidae'
- 'Parafletcheria belongs to Fletcheriidae'
- 'Parafletcharia is a misspelling of Parafletcheria'
- 'Paraipciphyllum belongs to Waagenophyllinae'
- 'Paralithostrotion belongs to Petalaxidae'
- 'Paralleynia belongs to Amplexocariniinae'
- 'Paramplexoides belongs to Streptelasmatinae'
- 'Parasarcinula belongs to Syringophyllinae'
- 'Parasociophyllum belongs to Stringophyllidae'
- 'Parastauria belongs to Stauriidae'
- 'Parastelliporella belongs to Stelliporellidae'
- 'Parastriatopora belongs to Parastriatoporidae'
- 'Parastriatoporella belongs to Pachyporidae'
- 'Parastriatoporidae belongs to Pachyporicae'
- 'Paratetradium belongs to Tetradiidae'
- 'Parawentzelella belongs to Waagenophyllinae'
- 'Parawentzelella (Miyagiella) belongs to Parawentzelella'
- 'Parawentzellophyllum belongs to Waagenophyllinae'
- 'Parazonophyllum belongs to Digonophyllidae'
- 'Pareynia belongs to Axophyllidae'
- 'Paterophyllum belongs to Enterolasmatinae'
- 'Pavastehphyllum belongs to Waagenophyllinae'
- 'Pavastehphyllum (Sakamotosawanella) belongs to Pavastehphyllum'
- 'Pavastehphyllum (Thomasiphyllum) belongs to Pavastehphyllum'
- 'Pedderelasma belongs to Laccophyllinae'
- 'Peneckiella belongs to Phillipsastreidae'
- 'Pentamplexus belongs to Pentaphyllinae'
- 'Pentaphyllidae belongs to Plerophyllina'
- 'Pentaphyllinae belongs to Pentaphyllidae'
- 'Pentaphyllum belongs to Pentaphyllinae'
- 'Peripaedium belongs to Cyathophyllidae'
- 'Periphacelopora belongs to Periphaceloporidae'
- 'Periphaceloporidae belongs to Syringoporicae'
- 'Petalaxidae belongs to Lonsdaleiina'
- 'Petraiella belongs to Petraiidae'
- 'Petraiidae belongs to Metriophyllina'
- 'Petridictyum belongs to Micheliniinae'
- 'Petronella belongs to Metriophyllidae'
- 'Petrozium belongs to Entelophyllidae'
- 'Phacellophyllum belongs to Phillipsastreidae'
- 'Phaulactis belongs to Lykophyllidae'
- 'Phillipsastraeidae is replaced by Phillipsastreidae'
- 'Phillipsastrea belongs to Phillipsastreidae'
- 'Phillipsastreidae belongs to Columnariina'
- 'Pholidophyllum is a subjective synonym of Tryplasma'
- 'Phymatophyllum belongs to Zaphrentidae'
- 'Phytopsis belongs to Tetradiidae'
- 'Pilophyllia belongs to Kodonophyllidae'
- 'Pilophylloides belongs to Kyphophyllidae'
- 'Pilophyllum belongs to Kyphophyllidae'
- 'Placocoenites belongs to Coenitidae'
- 'Planalveolitella belongs to Auloporidae'
- 'Planalveolites belongs to Alveolitinae'
- 'Planetophyllum belongs to Columnariidae'
- 'Planocoenites belongs to Coenitidae'
- 'Plasmophyllum belongs to Lykophyllidae'
- 'Plasmoporella belongs to Plasmoporellidae'
- 'Plasmoporellidae belongs to Proporicae'
- 'Plasmoporidae belongs to Proporicae'
- 'Platyaxum belongs to Coenitidae'
- 'Pleophyllum belongs to Polycoeliinae'
- 'Plerophyllidae belongs to Plerophyllina'
- 'Plerophyllina belongs to Stauriida'
- 'Plerophyllinae belongs to Plerophyllidae'
- 'Plerophyllum (Barbarella) was reranked as Barbarella and belongs to Plerophyllinae'
- 'Pleurosiphonella belongs to Syringoporidae'
- 'Plexituba belongs to Aulocystidae'
- 'Plicatomurus belongs to Pachyfavositinae'
- 'Polycoeliidae belongs to Plerophyllina'
- 'Polyorophe belongs to Tryplasmatinae'
- 'Polythecalis belongs to Wentzelellinae'
- 'Polythecalis (Chusenophyllum) belongs to Polythecalis'
- 'Porfirieviella belongs to Dinophyllinae'
- 'Porkunites belongs to Cryptolichenariidae'
- 'Praewentzelella belongs to Wentzelellinae'
- 'Pragnellia belongs to Coccoseridicae'
- 'Primitophyllum belongs to Palaeocyclidae'
- 'Prisciturben belongs to Stauriidae'
- 'Priscosolenia belongs to Multisoleniinae'
- 'Prismatophyllum belongs to Cylindrophyllinae'
- 'Procteria belongs to Granulidictyinae'
- 'Procteria (Pachyprocteria) belongs to Procteria'
- 'Proheliolites belongs to Proheliolitidae'
- 'Proheliolitidae belongs to Proporicae'
- 'Prohexagonaria belongs to Entelophyllidae'
- 'Proporella belongs to Plasmoporellidae'
- 'Proporicae belongs to Heliolitina'
- 'Proporidae belongs to Proporicae'
- 'Prosmilia belongs to Prosmiliinae'
- 'Prosmiliinae belongs to Polycoeliidae'
- 'Protaraea belongs to Coccoserididae'
- 'Proterophyllum belongs to Stauriidae'
- 'Protocyathactis belongs to Paliphyllidae'
- 'Protodurhamina belongs to Durhaminidae'
- 'Protoheliolites belongs to Proheliolitidae'
- 'Protolonsdaleiastraea belongs to Durhaminidae'
- 'Protomacgeea belongs to Phillipsastreidae'
- 'Protopilophyllum belongs to Pycnostylidae'
- 'Protopora belongs to Romingeriidae'
- 'Protoramulophyllum belongs to Paliphyllidae'
- 'Prototryplasma belongs to Coelostylinae'
- 'Protowentzelella belongs to Durhaminidae'
- 'Protozaphrentis belongs to Petraiidae'
- 'Protrachypora belongs to Pachyporidae'
- 'Protrochiscolithus belongs to Palaeoporitidae'
- 'Pseudamplexophyllum belongs to Mucophyllidae'
- 'Pseudamplexus belongs to Mucophyllidae'
- 'Pseudoblothrophyllum belongs to Kodonophyllidae'
- 'Pseudobradyphyllum belongs to Antiphyllinae'
- 'Pseudocampophyllum belongs to Disphyllinae'
- 'Pseudocarniaphyllum was reranked as Pavastehphyllum (Pseudocarniaphyllum) and belongs to Pavastehphyllum'
- 'Pseudochonophyllum belongs to Ptenophyllinae'
- 'Pseudoclaviphyllinae belongs to Antiphyllidae'
- 'Pseudoclaviphyllum belongs to Pseudoclaviphyllinae'
- 'Pseudocryptophyllum belongs to Polycoeliinae'
- 'Pseudocystiphyllum belongs to Lykophyllidae'
- 'Pseudodigonophyllum belongs to Cystiphyllidae'
- 'Pseudodorlodotia belongs to Thysanophyllinae'
- 'Pseudofavosites belongs to Pseudofavositidae'
- 'Pseudofavositidae belongs to Favositicae'
- 'Pseudofletcheria belongs to Fletcheriellidae'
- 'Pseudogrypophyllum belongs to Ptenophyllinae'
- 'Pseudohuangia belongs to Waagenophyllinae'
- 'Pseudomucophyllum belongs to Arachnophyllidae'
- 'Pseudopavona belongs to Pseudopavoninae'
- 'Pseudopavonidae belongs to Lonsdaleiina'
- 'Pseudopavoninae belongs to Pseudopavonidae'
- 'Pseudopetraia belongs to Heterophylliidae'
- 'Pseudophaulactis belongs to Lykophyllidae'
- 'Pseudopilophyllum belongs to Expressophyllidae'
- 'Pseudoplasmopora belongs to Pseudoplasmoporidae'
- 'Pseudoplasmoporidae belongs to Helioliticae'
- 'Pseudopolythecalis belongs to Wentzelellinae'
- 'Pseudoroemeria belongs to Tetraporellidae'
- 'Pseudoroemeripora belongs to Roemeriidae'
- 'Pseudoromingeria belongs to Aulocystidae'
- 'Pseudoseptifer belongs to Chaetetidae'
- 'Pseudotimania belongs to Bothrophyllidae'
- 'Pseudotryplasma belongs to Mucophyllidae'
- 'Pseudowannerophyllum belongs to Verbeekiellidae'
- 'Pseudoyatsengia belongs to Yatsengiinae'
- 'Pseudozaphrentoides belongs to Cyathopsidae'
- 'Psydracophyllum belongs to Ptenophyllinae'
- 'Ptenophyllidae belongs to Ptenophyllina'
- 'Ptenophyllina belongs to Stauriida'
- 'Ptenophyllinae belongs to Ptenophyllidae'
- 'Pterophrentis belongs to Streptelasmatinae'
- 'Pterorrhiza belongs to Phillipsastreidae'
- 'Ptychophyllidae belongs to Cyathophyllina'
- 'Ptychophyllum belongs to Ptychophyllidae'
- 'Pycnactis belongs to Lykophyllidae'
- 'Pycnactoides belongs to Streptelasmatinae'
- 'Pycnolithidae belongs to Coccoseridicae'
- 'Pycnolithus belongs to Pycnolithidae'
- 'Pycnostylidae belongs to Stauriina'
- 'Pycnostylus belongs to Pycnostylidae'
- 'Pyrgiidae belongs to Auloporicae'
- 'Qianbeilites belongs to Foerstephyllinae'
- 'Qiannanophyllum belongs to Cyathophyllidae'
- 'Qinghaiphyllum belongs to Palaeosmiliidae'
- 'Quepora belongs to Cateniporinae'
- 'Radiastraea belongs to Paradisphyllinae'
- 'Radiophyllum belongs to Cyathophyllidae'
- 'Ramulophyllum belongs to Entelophyllidae'
- 'Rectigrewingkia belongs to Streptelasmatinae'
- 'Redstonea belongs to Ptenophyllinae'
- 'Reimanophyllum belongs to Lykophyllidae'
- 'Remesia belongs to Romingeriidae'
- 'Retiophyllum belongs to Laccophyllidae'
- 'Reuschia belongs to Lyoporinae'
- 'Rhabdacanthia is a subjective synonym of Aphyllum'
- 'Rhabdelasma belongs to Tryplasmatinae'
- 'Rhabdocyclus belongs to Palaeocyclidae'
- 'Rhabdotetradium belongs to Tetradiidae'
- 'Rhachopora belongs to Pachyporidae'
- 'Rhaphidophyllum belongs to Cyrtophyllidae'
- 'Rhipidophyllum belongs to Metriophyllina'
- 'Rhizophylloides belongs to Goniophyllidae'
- 'Rhizophyllum belongs to Goniophyllidae'
- 'Ridderia belongs to Metriophyllina'
- 'Riphaeolites belongs to Cleistoporidae'
- 'Roemeria belongs to Roemeriidae'
- 'Roemeriidae belongs to Syringoporicae'
- 'Roemeripora belongs to Roemeriidae'
- 'Roemerolites belongs to Roemeriidae'
- 'Romingeria belongs to Romingeriidae'
- 'Romingeriidae belongs to Auloporicae'
- 'Rossopora belongs to Sinoporidae'
- 'Rotalites belongs to Proporidae'
- 'Rotiphyllum belongs to Antiphyllinae'
- 'Rozkowskia belongs to Amygdalophyllinae'
- 'Rudakites belongs to Favositinae'
- 'Rugosa was reranked as a subclass and belongs to Anthozoa'
- 'Rukhinia belongs to Lykophyllidae'
- 'Ryderophyllum belongs to Lykophyllidae'
- 'Rylstonia belongs to Amygdalophyllinae'
- 'Saaremolites belongs to Heliolitidae'
- 'Saffordophyllum belongs to Paleofavositinae'
- 'Salairia belongs to Favositinae'
- 'Salairophyllum belongs to Ptenophyllinae'
- 'Saleelasma belongs to Stereolasmatidae'
- 'Salpingium belongs to Pyrgiidae'
- 'Sanidophyllum belongs to Endophyllidae'
- 'Sapporipora belongs to Favositinae'
- 'Sarcinulida belongs to Tabulata'
- 'Sassendalia belongs to Polycoeliinae'
- 'Saucrophyllum belongs to Laccophyllinae'
- 'Scenophyllum belongs to Acrophyllidae'
- 'Scharkovaelites belongs to Alveolitinae'
- 'Schedohalysites belongs to Halysitinae'
- 'Schindewolfia belongs to Laccophyllinae'
- 'Schizolites belongs to Desmidoporidae'
- 'Schizophorites belongs to Tabulata'
- 'Schlotheimophyllum belongs to Kodonophyllidae'
- 'Schmidtilites belongs to Proheliolitidae'
- 'Schoenophyllum belongs to Lithostrotioninae'
- 'Sciophyllum belongs to Thysanophyllinae'
- 'Sclerophyllum belongs to Paliphyllidae'
- 'Sclerophyllum sokolovi belongs to Sclerophyllum'
- 'Scoliopora belongs to Natalophyllinae'
- 'Scruttonia belongs to Phillipsastreidae'
- 'Scyphophyllum belongs to Entelophyllidae'
- 'Septentrionites belongs to Lyoporinae'
- 'Septochaetetes belongs to Acanthochaetetidae'
- 'Sestrophyllum belongs to Dibunophyllinae'
- 'Shastaphyllum belongs to Ptenophyllinae'
- 'Shensiphyllum belongs to Entelophyllidae'
- 'Sibiriolitella belongs to Sibiriolitidae'
- 'Sibiriolites belongs to Sibiriolitidae'
- 'Sibiriolitidae belongs to Proporicae'
- 'Siedleckia belongs to Bothrophyllidae'
- 'Sinkiangopora belongs to Pachyporidae'
- 'Sinochlamydophyllum belongs to Kodonophyllidae'
- 'Sinodisphyllum belongs to Cyathophyllidae'
- 'Sinopora belongs to Sinoporidae'
- 'Sinoporella belongs to Sinoporidae'
- 'Sinoporidae belongs to Auloporicae'
- 'Siphonodendron belongs to Lithostrotioninae'
- 'Siphonolasma belongs to Streptelasmatinae'
- 'Siphonophrentis belongs to Amplexidae'
- 'Skolekophyllum belongs to Cyathopsidae'
- 'Slimoniphyllum belongs to Dibunophyllinae'
- 'Smithiphyllum belongs to Endophyllidae'
- 'Smythina belongs to Palaeacidae'
- 'Sociophyllum belongs to Stringophyllidae'
- 'Sogdianophyllum belongs to Lambelasmatinae'
- 'Solenihalysites belongs to Halysitinae'
- 'Solenodendron belongs to Aulininae'
- 'Solipetra belongs to Stringophyllidae'
- 'Somphopora belongs to Agetolitidae'
- 'Soshkinolites belongs to Enterolasmatinae'
- 'Sparsisolenia belongs to Multisoleniinae'
- 'Spasskyella belongs to Columnariidae'
- 'Spineria belongs to Endamplexidae'
- 'Spinophyllum belongs to Disphyllinae'
- 'Spiroclados belongs to Tetraporellidae'
- 'Spirophyllum belongs to Dibunophyllinae'
- 'Spongiothecopora belongs to Chaetetinae'
- 'Spongonaria belongs to Spongonariinae'
- 'Spongonariinae belongs to Disphyllidae'
- 'Spongophyllidae belongs to Ptenophyllina'
- 'Spongophylloides belongs to Actinocystinae'
- 'Spumaeolites belongs to Halysitinae'
- 'Squameoalveolites belongs to Caliaporinae'
- 'Squameofavosites belongs to Emmonsiinae'
- 'Squameolites belongs to Plasmoporidae'
- 'Squameophyllum belongs to Cleistoporidae'
- 'Squameopora belongs to Favositinae'
- 'Staphylopora belongs to Chaetetinae'
- 'Stauriida belongs to Rugosa'
- 'Stauriidae belongs to Stauriina'
- 'Stauriina belongs to Stauriida'
- 'Staurophyllum belongs to Aulophyllinae'
- 'Stelechophyllum belongs to Acrocyathinae'
- 'Stellatophyllum belongs to Phillipsastreidae'
- 'Stelliporellidae belongs to Helioliticae'
- 'Stenophyllum is a subjective synonym of Acanthophyllum'
- 'Stereocorypha belongs to Polycoeliinae'
- 'Stereolasma belongs to Stereolasmatidae'
- 'Stereolasmatidae belongs to Stereolasmatina'
- 'Stereolasmatina belongs to Stauriida'
- 'Stereophyllum belongs to Digonophyllidae'
- 'Stereostylus belongs to Lophophyllidae'
- 'Sterictophyllum belongs to Cyathophyllidae'
- 'Stewartophyllum belongs to Stereolasmatidae'
- 'Stortophyllum belongs to Tryplasmatinae'
- 'Stratophyllum belongs to Cleistoporidae'
- 'Strephophyllum belongs to Lykophyllidae'
- 'Streptelasmatina belongs to Stauriida'
- 'Striatopora belongs to Pachyporidae'
- 'Striatoporella belongs to Favositinae'
- 'Stringophyllidae belongs to Ptenophyllina'
- 'Stringophyllum (Neospongophyllum) belongs to Stringophyllum' according to Wedekind 1922
- 'Stringophyllum (Neospongophyllum) belongs to Stringophyllum'
- 'Strobilasma belongs to Anthozoa'
- 'Strombodes belongs to Kyphophyllidae'
- 'Stylaraea is replaced by Protaraea'
- 'Stylastraea belongs to Thysanophyllinae'
- 'Stylonites belongs to Pseudofavositidae'
- 'Stylopleura belongs to Mucophyllidae'
- 'Subalveolitella belongs to Alveolitinae'
- 'Subalveolites belongs to Alveolitinae'
- 'Subcaliapora belongs to Caliaporinae'
- 'Sudetia belongs to Phillipsastreidae'
- 'Sugiyamaella belongs to Lophophyllidae'
- 'Sulcorphyllum belongs to Phillipsastreidae'
- 'Sumsarophyllum belongs to Paliphyllidae'
- 'Sunophyllum belongs to Stringophyllidae'
- 'Sutherlandia belongs to Emmonsiinae'
- 'Sutherlandinia belongs to Laccophyllinae'
- 'Svalbardphyllum belongs to Polycoeliinae'
- 'Sverigophyllum belongs to Lykophyllidae'
- 'Svetlania belongs to Lykophyllidae'
- 'Sychnoelasma belongs to Zaphrentoidinae'
- 'Symphyphyllum belongs to Kodonophyllidae'
- 'Symplectophyllum belongs to Aphrophyllidae'
- 'Synamplexus belongs to Pycnostylidae'
- 'Synaptophyllum belongs to Pycnostylidae'
- 'Syringaxon belongs to Laccophyllinae'
- 'Syringella is a subjective synonym of Chia'
- 'Syringoalcyon belongs to Syringoporidae'
- 'Syringocolumna belongs to Syringoporidae'
- 'Syringolites belongs to Syringolitidae'
- 'Syringolitidae belongs to Favositicae'
- 'Syringophyllinae belongs to Syringophyllidae'
- 'Syringoporella belongs to Multithecoporidae'
- 'Syringoporicae belongs to Auloporida'
- 'Syringoporidae belongs to Syringoporicae'
- 'Syringoporiella belongs to Syringoporidae'
- 'Syringoporinus belongs to Tetraporellidae'
- 'Tabellaephyllum belongs to Micheliniinae'
- 'Tabularia belongs to Ketophyllidae'
- 'Tabulophyllum belongs to Endophyllidae'
- 'Tachylasma belongs to Pentaphyllinae'
- 'Tachyphyllinae belongs to Adamanophyllidae'
- 'Tachyphyllum belongs to Tachyphyllinae'
- 'Taeniolites belongs to Taeniolitidae'
- 'Taeniolitidae belongs to Helioliticae'
- 'Taimyrophyllum belongs to Ptenophyllinae'
- 'Taisyakuphyllinae belongs to Pseudopavonidae'
- 'Taisyakuphyllum belongs to Taisyakuphyllinae'
- 'Tanbaella belongs to Durhaminidae'
- 'Taralasma belongs to Taralasmatinae'
- 'Taralasmatinae belongs to Laccophyllidae'
- 'Tarbagatailites belongs to Stelliporellidae'
- 'Tatjanophyllum belongs to Axophyllidae'
- 'Taxopora is a subjective synonym of Cladopora'
- 'Temnophyllum belongs to Disphyllinae'
- 'Tenuilasma belongs to Dinophyllinae'
- 'Tenuiphyllum belongs to Entelophyllidae'
- 'Tetraporellidae belongs to Syringoporicae'
- 'Tetraporinus belongs to Tetraporellidae'
- 'Thamnophyllum belongs to Phillipsastreidae'
- 'Thamnoporella belongs to Pachyporidae'
- 'Thamnoptychia belongs to Pachyporidae'
- 'Thaumatolites belongs to Proporidae'
- 'Thecacristatus belongs to Pycnostylidae'
- 'Thecaxon belongs to Kielcephyllidae'
- 'Thecia (Angopora) belongs to Thecia'
- 'Thecipora belongs to Theciidae'
- 'Thecostegitidae belongs to Syringoporicae'
- 'Thysanophyllinae belongs to Lithostrotionidae'
- 'Thysanophyllum belongs to Thysanophyllinae'
- 'Timania belongs to Bothrophyllidae'
- 'Timorphyllidae belongs to Plerophyllina'
- 'Tipheophyllum belongs to Eridophyllinae'
- 'Tiverina belongs to Tiverinidae'
- 'Tiverinidae belongs to Chaetetida'
- 'Tollina belongs to Lyoporinae'
- 'Tonkinaria belongs to Ptenophyllinae'
- 'Toquimaphyllum belongs to Ptenophyllinae'
- 'Tortophyllum belongs to Bethanyphyllidae'
- 'Trabeculites belongs to Lyoporinae'
- 'Trachyphyllum belongs to Entelophyllidae'
- 'Trachypora is a subjective synonym of Thamnoptychia'
- 'Trachypsammia belongs to Trachypsammiidae'
- 'Trachypsammiidae belongs to Auloporicae'
- 'Transitolites belongs to Lyoporinae'
- 'Trapezophyllum belongs to Phillipsastreidae'
- 'Triplophyllum belongs to Streptelasmatinae'
- 'Trochiscolithus belongs to Palaeoporitidae'
- 'Trochophyllum belongs to Neaxoninae'
- 'Troedssonites belongs to Tetraporellidae'
- 'Tropidophyllum belongs to Spongonariinae'
- 'Trypanopora belongs to Tabulata'
- 'Tryplasma belongs to Tryplasmatinae'
- 'Tryplasmatidae belongs to Cystiphyllida'
- 'Tryplasmatinae belongs to Tryplasmatidae'
- 'Tschussovskenia belongs to Diphyphyllinae'
- 'Tubipora catenularia is recombined as Halysites catenularius'
- 'Tungussophyllum belongs to Streptelasmatidae'
- 'Turbinatocaninia belongs to Dibunophyllinae'
- 'Turbophyllum belongs to Ekvasophyllidae'
- 'Tyrganolithes belongs to Natalophyllinae'
- 'Ufimia belongs to Plerophyllinae'
- 'Ullernelasma belongs to Streptelasmatinae'
- 'Uralinia belongs to Uraliniidae'
- 'Uraliniidae belongs to Caniniina'
- 'Uralopora belongs to Syringophyllinae'
- 'Urceopora belongs to Coccoseridicae'
- 'Utaratuia belongs to Spongonariinae'
- 'Vacuopora belongs to Lyoporinae'
- 'Variseptophyllum belongs to Spongonariinae'
- 'Vaughaniidae belongs to Favositicae'
- 'Vepresiphyllum belongs to Fasciphyllidae'
- 'Verbeekiella belongs to Verbeekiellidae'
- 'Verbeekiellidae belongs to Plerophyllina'
- 'Verolites belongs to Thecostegitidae'
- 'Vesiculophyllum belongs to Uraliniidae'
- 'Vesiculotubus belongs to Aulininae'
- 'Vestigiphyllum belongs to Phillipsastreidae'
- 'Waagenophyllidae belongs to Lonsdaleiina'
- 'Waagenophyllum (Chaoiphyllum) belongs to Waagenophyllum'
- 'Waagenophyllum (Liangshanophyllum) belongs to Waagenophyllum'
- 'Weissermelia belongs to Ptenophyllinae'
- 'Wenlockia belongs to Tryplasmatinae'
- 'Wentzelella belongs to Wentzelellinae'
- 'Wentzelella (Szechuanophyllum) belongs to Wentzelella'
- 'Wentzelella (Wentzelloides) was reranked as Wentzelloides and belongs to Wentzelellinae'
- 'Wentzelellinae belongs to Waagenophyllidae'
- 'Wentzelellites belongs to Wentzelellinae'
- 'Wentzelloides (Battambangia) belongs to Wentzelloides' according to Fontaine 1967
- 'Wentzelloides (Battambangia) belongs to Wentzelloides'
- 'Wentzelloides (Multimurinus) belongs to Wentzelloides'
- 'Wentzelophyllum belongs to Wentzelellinae'
- 'Werneckelasma belongs to Arachnophyllidae'
- 'Windelasma belongs to Ptenophyllinae'
- 'Wintunastraea belongs to Kyphophyllidae'
- 'Wormsipora belongs to Taeniolitidae'
- 'Xenocyathellus belongs to Homalophyllinae'
- 'Xenoemmonsia belongs to Emmonsiinae'
- 'Xiphelasma belongs to Holmophyllidae'
- 'Xystrigona belongs to Paradisphyllinae'
- 'Xystriphylloides belongs to Paradisphyllinae'
- 'Xystriphyllum belongs to Ptenophyllinae'
- 'Yabeiphyllum belongs to Durhaminidae'
- 'Yacutiopora belongs to Parastriatoporidae'
- 'Yakovleviella belongs to Dibunophyllinae'
- 'Yakovliella is a misspelling of Yakovleviella'
- 'Yassia belongs to Endophyllidae'
- 'Yatsengiinae belongs to Lithostrotionidae'
- 'Yavorskia belongs to Cleistoporidae'
- 'Yohophyllum belongs to Calostylidae'
- 'Yokoyamaella belongs to Waagenophyllinae'
- 'Yokoyamaella (Maoriphyllum) belongs to Yokoyamaella'
- 'Yuanophylloides belongs to Dibunophyllinae'
- 'Yuanophyllum belongs to Dibunophyllinae'
- 'Zakowia belongs to Aulophyllinae'
- 'Zaphrentidae belongs to Cyathophyllina'
- 'Zaphrentites belongs to Hapsiphyllinae'
- 'Zaphrentoides belongs to Zaphrentoidinae'
- 'Zaphrentoididae belongs to Stereolasmatina'
- 'Zaphrentoidinae belongs to Zaphrentoididae'
- 'Zaphrentula belongs to Hapsiphyllinae'
- 'Zaphriphyllum belongs to Ekvasophyllidae'
- 'Zeliaphyllum belongs to Verbeekiellidae'
- 'Zelolasma belongs to Spongonariinae'
- 'Zelophyllia belongs to Kodonophyllidae'
- 'Zelophyllum belongs to Pycnostylidae'
- 'Zenophila belongs to Arachnophyllidae'
- 'Zeravschania belongs to Lykophyllidae'