List of prehistoric hexacoral genera

This list of prehistoric hexacorals (hexacorallia) is an attempt to create a comprehensive listing of all genera that have ever been included in the hexacorallia which are known from the fossil record. This list excludes purely vernacular terms. It includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered scleractinia.

Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen. Nomen nudum (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen. Nomen oblitum (Latin for "forgotten name"): A name that has not been used in the scientific community for more than fifty years after its original proposal. Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced. As preoccupied names are not valid generic names, they will also go unitalicized on this list. Nomen dubium (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. As this can be an extremely subjective and controversial designation, this term is not used on this list.

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A Acaciapora Acalepha Acanthastrea Acanthocyathus Acanthogyra Acanthophillia Acanthophyllia Acanthophyllum Accurganaxon Acdalina Acervularia Acidolites Acinophyllum Acmophyllum Acrocyathus Acrohelia – junior synonym of Galaxea Acrophyllum Acropora Acrosmilia Acsaspedites Actinacis Actinaraea Actinaraeopsis Actinastaeopsis Actinastraea Actinocyathus Actinophrentis Adamanophyllum Adaverina Adekoheastrea Adelocoenia Adetopora Adinophyllum Adkinsella Adradosia Aemulophyllum Agaricia Agastophyllum Agathelia Agathiphyllia Agetolitella Agetolites Aggomorphastraea Ahrdorffia Ainia Akagophyllum Akiyosiphyllum Aknisophyllum Alaiophyllum Alakiria Alinkioduncanella Alleynia Allocoenia Allocoeniopsis Alloiteaucoenia Alloiteausmilia Allophyllum Allotropiophyllum Alpinophyllia Alpinoseris Altaiophyllum Altaja Alveolites Alveolocyathus Alveopora Amandaraia Amandophyllum Amaraphyllum Amniopora Ampakabastraea Amphelia Amphiastraea Amphiaulastrea Amphimeandra Amphiphora Amplexiphyllum Amplexizaphrentis Amplexocarinia Amplexoides Amplexus Amsdenoides Amygdalophyllidium Amygdalophylloides Amygdalophyllum Anactolasma Andemantastraea Andrazella Angeliphyllia Angullophyllum Angustiphyllum Anisastraea Anisocoenia Anisophyllum Ankhelasma Annotocyathus Anomastraea Anomopora Antheria Antherolites Antholites Anthostylis Antiguastrea Antikinkaidia Antillia Antillocyathus Antillophyllia Antilloseris Antracophyllum Apelismilia Aphraxonia Aphroelasma Aphroidophyllum Aphrophylloides Aphrophyllum Aphyllum Aplocyathus Aplophyllia Aplopsammia Aplosmilia Apocladophyllia Aquitanastraea Aquitanophyllia Arachnastraea Arachniophyllum Arachnolasma Arachnolasmella Arachnophyllum Araeopoma Araeopora Araiophyllum Araiostrotion Archaeolasmogyra Archaeophyllia Archaeosmilia Archaeosmiliopsis Archaeozaphrentis Archohelia Archypora Arcocyathus Arcoplasma Arctangia Arctophyllum Areopsammia Argutastrea Aristophyllum Armalites Asarcophyllum Aspasmophyllum Asperophyllum Aspidastraea Aspidiscus Asserculinia Asterobillingsia Asterodisphyllum Asterosmilia Asthenophyllum Astraeofungia Astraeomorpha Astraeophyllum Astrangia Astraraea Astreopora Astrhelia Astrictophyllum Astrocerium Astrocoenia Astrogyra Astroides Asturiphyllum Athecastraea Atopocoenia Aulacophyllum Aulastraea Aulastraeopora Aulina Aulocaulis Auloclisia Aulocystella Aulocystis Aulohelia Aulokoninckophyllum Aulophyllum Auloporella Aulosmilia Aulostegites Aulostrotion Aulostylus Aulozoa Australophyllum Avicenia Axinura Axiphoria Axoclisia Axocricophyllum Axocyathus Axolasma Axolithophyllum Axophyllum Axosmilia Axotrochus Axuolites

B Baikitolites Bainbridgia Baitalites Bajgolia Baksanophyllia Balanophyllia Bantamia Barbarella Barrandeophyllum Baryhelia Barylasma Baryphyllia Baryphyllum Barysmilia Barytichisma Basleophyllum Bassius Batangophyllum Bathmosmilia Bathybalva Bathycoenia Bathycyathus Bayhaium Beaumontia Beiliupora Belgradeophyllum Beneckastraea Bensonastraea Benxiphyllum Beogradophyllum Berkhia Bethanyphyllum Beugniesastraea Bibucia Bifossularia Bighornia Bilaterocoenia Billingsaria Biphyllum Bitraria Blastosmilia Blothrocyathus Blothrophyllum Blysmatophyllum Bodeurina Bodophyllum Bogimbailites Bojocyclus Boolelasma Bordenia Borelasma Bothroclisia Bothrophoria Bothrophyllum Bouvierphyllum Bowanophyllum Bowenelasma Brachiatusmilia Brachycoenia Brachycyathus Brachymeandra Brachyphyllia Brachyseris Bractea Bracthelia Bracytrochus Bradyphyllum Brevimaeandra Breviphrentis Breviphyllum Breviseptophyllum Briantelasma Briantia Bucanophyllum Budaia Bulvankeriphyllum Bussonastraea

C Calameastolia Calamophyllia Calamophylliopsis Calamoseris Calceola Caliapora Calinastrea Calmiussiphyllum Calophylloides Calophyllum Calostylis Calostylopsis Campophyllum Camptolithus Camurophyllum Canadiphyllum Caninella Caninia Caninophyllum Caninostrotion Cannapora Cantrillia Capnophyllum Carantophyllum Carcicocaenia Cardiaphyllum Cardiastraea Carinotachylasma Carinowaagenophyllum Carinthiaphyllum Carlinastraea Carniaphyllum Carolastraea Carruthersella Caryophyllia Caryosmilia Cassianastraea Catactotoechus Caulastrea Cavilasma Ceciliaphyllum Celechopora Cenomanina Centristella Ceratocoenia Ceratophyllia Ceratophyllum Ceratopsammia Ceratothecia Ceratotrochus Cereiophyllia Ceriaster Ceriocysta Cerioelasma Cerioheterastraea Ceriostella Ceriphyllum Ceristella Chalcidophyllum Changjianggouphyllum Charactophyllum Charisphyllum Chavsakia Cheilosmilia Chevalieria Chevalierismilia Chia Chielasma Chihsiaphyllum Chlamydophyllum Choanoplasma Chomatoseris Chonaxis Chondrocoenia Chonophyllum Chonostegites Chostophyllum Chuanbeiphyllum Chusenophyllum Cionodendron Circophyllia Circophyllum Circumtextiphyllum Cladangia Cladionophyllum Cladochonus Cladocora Cladophyllia Cladophylliopsis Cladopora Clausastraea Clausastraeopsis Clavilasma Claviphyllum Cleistopora Clinophyllum Clisiophyllum Clonosmilia Coccophyllum Coccoseris Codonophyllum Codonosmilia Coelocoenia Coelolasma Coelomeandra Coeloseris Coelostylis Coenangia Coenaphrodia Coenastraea Coenites Coenocyathus Coleophyllum Collignonastraea Colpophyllia Columactinastrea Columastrea Columellogyra Columnaphyllia Columnaria Columnaxon Columnocoenia Columnogyra Columnolasma Columnoporella Comanaphyllum Combophyllum Commutatophyllum Commutia Comophyllastraea Comophyllia Comophylliopsis Comoseris Complanophyllum Complexastraea Complexastraeopsis Complexophyllum Compressiphyllum Confusastraea Confusastraraea Conicosmiliotrochus Connectastrea Conocyathus Conophyllia Conopoterium Conosmilia Conotrochus Contortophyllum Convexastraea Copia Corbariastraea Cornwallatia Coronocyathus Corphalia Corrugopora Corwenia Coryphyllia Coscinaraea Cosjuvia Cosmiolithus Craspedophyllia Crassialveolites Crassicyclus Crassilasma Crassistella Crassophrentis Crateniophyllum Craterastraea Craterophyllum Crateroseris Cravenia Crenulipora Crenulites Crepidophyllia Cricocyathus Crista Cronyphyllum Cruciphyllum Cryptangia Cryptocoenia Cryptolichenaria Ctenactis Cuctienophyllum Cuifastraea Cuifia Culicia Cumminsia Cunnolites Curtastrum Cyanaphyllum Cyathactis Cyathaxonella Cyathaxonia Cyathelia Cyathoceras Cyathoclisia Cyathocoenia Cyathocylindrum Cyathopaedium Cyathophora Cyathophyllia Cyathophylliopsis Cyathophylloides Cyathophyllum Cyathoseris Cyathosmilia Cyathotrochus Cyclastraea Cyclindrocyathus Cyclobacia Cycloflabellum Cyclolites Cyclolitopsis Cyclomussa Cyclophyllia Cyclophyllopsis Cycloseris Cylindrophyllia Cylindrophyllum Cylindrosmilia Cylindrostylus Cylismilia Cymatelasma Cymatella Cymosmilia Cyphastraea Cyrtocyathus Cyrtophyllum Cystelasma Cysticonophyllum Cystihalysites Cystihexagonaria Cystilophophyllum Cystipaliphyllum Cystiphorolites Cystiphylloides Cystiphyllum Cystitrypanopora Cystocantrilla Cystodendropora Cystolonsdaleia Cystolyrielasma Cystophrentis Cyttaroplasma Czarnockia

D Dactylaraea Dactylocoenia Dactylosmilia Dagmaraephyllum Daljanolites Dalmanophyllum Dalnia Darwasophyllum Dasmia Dasmiopsis Dasmosmilia Debnikiella Decaheliocoenia Decaphyllum Defrancia Deiracorallium Deltocyathus Denayphyllum Dendracis Dendraraea Dendrocyathus Dendrofavosites Dendrogyra Dendroholmia Dendrophyllia Dendrosmilia Dendrostella Dendrozoum Densigrewingkia Densiphrentis Densiphyllum Dentilasma Depasophyllum Derivatolites Dermosastraea Dermoseris Dermosmilia Dermosmiliopsis Dermosmiliopsis Desmocladia Desmocoenia Desmophyllum Dialeptophyllum Dialytophyllum Diaschophyllum Diblasus Dibunophyllum Dichocaeniopsis Dichocoenia Dichophyllia Dichotomosmilia Dictyaraea Dictyofavosites Dictyopora Diegosmilia Diffingia Diffusolasma Digitosmilia Digonoclisia Digonophyllum Dillerium Dimelasma Dimorpharaea Dimorphastraeopsis Dimorphastrea Dimorphocoenia Dimorphocoeniopsis Dimorphofungia Dimorphomeandra Dimorphophyllia Dimorphoseris Dimorphosmilia Dinophyllum Dinostrophinx Diorychopora Diphyphyllum Diplaraea Diploastrea Diplochone Diplocoenia Diplocteniopsis Diploctenium Diploepora Diplogyra Diplohelia Diplophyllum Diploria Diplothecangia Dipterophyllum Disaraea Discocoenia Discocoeniopsis Discocyathus Discoidocyathus Discosmilia Discotrochus Disphyllia Disphyllum Distichoflabellum Distichomeandra Distichophyllia Ditoecholasma Diversiphyllum Dohmophyllum Dokophyllum Dominicotrochus Donacophyllum Donacosmilia Donetzites Donophyllum Dordonophyllia Dorlodotia Drewerelasma Dubrovia Ducdonia Duncanella Duncania Duncanopora Duncanopsammia Duncanosmilia Dungulia Duplocarinia Duplophyllum Durhamina Dushanophrentis Dybowskinia

E Eastonastraea Eastonoides Ebocotrochus Ebrayia Eburneotrochus Echigophyllum Echinophyllia Echinopora Echyropora Eckastraea Edaphophyllum Edwardsastraea Edwardsomeandra Edwardsoseris Edwardsosmilia Edwardsotrochus Egosiella Ekvasophyllum Elasmocoenia Elasmofungia Elasmogyra Elasmophora Elasmophyllia Elasmophyllum Elephantaria Ellesmerelasma Ellipsasteria Ellipsocoenia Ellipsocyathus Ellipsoidastraea Ellipsosmilia Elliptoseris Elysastraea Embolophyllum Emmonsia Emmonsiella Empodesma Enallhelia Enallocoenia Enallophrentis Enallopsammia Endamplexus Endopachys Endophyllum Endothecium Enigmalites Entelophyllia Entelophyllum Enterolasma Enygmophyllum Eocatenipora Eofletcheria Eofletcheriella Eoglossophyllum Eohydnophora Eolaminoplasma Eostrotion Epiphanophyllum Epiphyllum Epismilia Epismiliopsis Epistreptophyllum Epitrochus Ericina Eridophyllum Erlangbapora Esthonia Estonielasma Etallonasteria Eugyra Eugyriopsis Euhelia Euphyllia Eupsammia Euryphyllum Eusmilia Eusmiliopsis Eusthenotrochus Evenkiella Ewaldocoenia Exilifrons Exostega

F Faberolasma Faberophyllum Fainella Faksephyllia