ammonites
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Gateway to the Paleobiology Database

Opinions from C. Teichert et al. 1964

  • 'Acanthonautilus belongs to Solenochilidae'
  • 'Acleistoceras belongs to Acleistoceratidae'
  • 'Acleistoceratidae belongs to Oncoceratida'
  • 'Actinoceras belongs to Actinoceratidae'
  • 'Actinoceratidae belongs to Actinocerida'
  • 'Actinoceratoidea belongs to Cephalopoda'
  • 'Actinocerida belongs to Actinoceratoidea'
  • 'Actinomorpha belongs to Valcouroceratidae'
  • 'Adelphoceras belongs to Rutoceratidae'
  • 'Adnatoceras belongs to Spyroceratinae'
  • 'Aethoceras belongs to Estonioceratidae'
  • 'Aipoceras belongs to Aipoceratidae'
  • 'Aipocerataceae belongs to Nautilida'
  • 'Aipoceratidae belongs to Aipocerataceae'
  • 'Akidocheilus belongs to Cephalopoda'
  • 'Akidocheilus (Akidocheilus) belongs to Akidocheilus' according to Till 1907
  • 'Akidocheilus (Akidocheilus) belongs to Akidocheilus'
  • 'Akidocheilus (Planecapula) belongs to Akidocheilus' according to Shimanskiy 1947
  • 'Akidocheilus (Planecapula) belongs to Akidocheilus'
  • 'Aktastioceras belongs to Parabactritidae'
  • 'Alaskoceras belongs to Estonioceratidae'
  • 'Albertoceras belongs to Ellesmeroceratidae'
  • 'Aletoceras belongs to Brevicoceratidae'
  • 'Alexandronautilus belongs to Liroceratidae'
  • 'Allanoceras belongs to Spyroceratinae'
  • 'Allocotoceras belongs to Endoceratidae'
  • 'Allopiloceras belongs to Piloceratidae'
  • 'Allotrioceras belongs to Allotrioceratidae'
  • 'Allotrioceratidae belongs to Endocerida'
  • 'Allumettoceras belongs to Tripteroceratidae'
  • 'Alpenoceras belongs to Discosoridae'
  • 'Amphicyrtoceras belongs to Acleistoceratidae'
  • 'Anastomoceras belongs to Spyroceratinae'
  • 'Ancistroceras belongs to Lituitidae'
  • 'Angelinoceras belongs to Lituitidae'
  • 'Anglicornus belongs to Brevicoceratidae'
  • 'Anguloceras belongs to Bassleroceratidae'
  • 'Anomaloceras belongs to Rutoceratidae'
  • 'Anomeioceras belongs to Acleistoceratidae'
  • 'Anoploceras belongs to Tainoceratidae'
  • 'Anthoceras belongs to Proterocameroceratidae'
  • 'Antiphragmoceras belongs to Westonoceratidae'
  • 'Antiplectoceras belongs to Barrandoceratidae'
  • 'Antonoceras belongs to Oncoceratida'
  • 'Aphelaeceras belongs to Trigonoceratidae'
  • 'Aphetoceras belongs to Estonioceratidae'
  • 'Aphragmites belongs to Ascoceratinae'
  • 'Apioceras belongs to Oncoceratida'
  • 'Aploceras belongs to Carbactinoceratidae'
  • 'Apocrinoceras belongs to Protocycloceratidae'
  • 'Apogonoceras belongs to Trigonoceratidae'
  • 'Apsidoceras belongs to Apsidoceratidae'
  • 'Apsidoceratidae belongs to Barrandeoceratida'
  • 'Archiacoceras belongs to Archiacoceratidae'
  • 'Archiacoceratidae belongs to Oncoceratida'
  • 'Argocheilus belongs to Poterioceratidae'
  • 'Arkoceras belongs to Trocholitidae'
  • 'Arkonoceras belongs to Michelinoceratinae'
  • 'Armenoceras belongs to Armenoceratidae'
  • 'Arpaoceras belongs to Cayutoceratinae'
  • 'Arthrophyllum belongs to Lamellorthoceratidae'
  • 'Asaphiceras belongs to Oncoceratidae'
  • 'Ascoceras belongs to Ascoceratinae'
  • 'Ascoceratidae belongs to Ascocerida'
  • 'Ascoceratinae belongs to Ascoceratidae'
  • 'Ascocerida belongs to Nautiloidea'
  • 'Asymptoceras belongs to Aipoceratidae'
  • 'Aturia belongs to Aturiidae'
  • 'Aturiidae belongs to Nautilitaceae'
  • 'Aturoidea belongs to Hercoglossidae'
  • 'Augustoceras belongs to Valcouroceratidae'
  • 'Aulaconautilus belongs to Paracenoceratidae'
  • 'Aulametacoceras belongs to Tainoceratidae'
  • 'Austinoceras belongs to Acleistoceratidae'
  • 'Avilionella belongs to Barrandoceratidae'
  • 'Avoceras belongs to Bassleroceratidae'
  • 'Bactrites belongs to Bactritida'
  • 'Bactritida belongs to Bactritoidea'
  • 'Bactritidae belongs to Bactritida'
  • 'Bactritoidea belongs to Cephalopoda'
  • 'Bactroceras belongs to Baltoceratidae'
  • 'Baeopleuroceras belongs to Nephriticeratidae'
  • 'Bajkaloceras belongs to Bajkaloceratidae'
  • 'Bajkaloceratidae belongs to Intejocerida'
  • 'Balticoceras belongs to Michelinoceratinae'
  • 'Baltoceratidae belongs to Ellesmerocerida'
  • 'Barrandeoceras belongs to Barrandoceratidae'
  • 'Barrandeoceratida belongs to Nautiloidea'
  • 'Barrandoceratidae belongs to Barrandeoceratida'
  • 'Bassleroceras belongs to Bassleroceratidae'
  • 'Bathmoceras belongs to Bathmoceratidae'
  • 'Bathmoceratidae belongs to Cyrtocerinina'
  • 'Beekmanoceras belongs to Trocholitidae'
  • 'Belemnitomimus belongs to Parabactritidae'
  • 'Beloitoceras belongs to Oncoceratidae'
  • 'Bergoceras belongs to Pseudactinoceratinae'
  • 'Bickmorites belongs to Barrandoceratidae'
  • 'Bifoveoceras belongs to Orthoceratinae'
  • 'Billingsites belongs to Ascoceratinae'
  • 'Bistrialites belongs to Liroceratidae'
  • 'Bitaunioceras belongs to Michelinoceratinae'
  • 'Blakeoceras belongs to Nothoceratidae'
  • 'Blastocerina belongs to Brevicoceratidae'
  • 'Bolloceras belongs to Nothoceratidae'
  • 'Boreoceras belongs to Cyrtendoceratidae'
  • 'Brachycycloceras belongs to Brachycycloceratidae'
  • 'Brachycycloceratidae belongs to Orthocerataceae'
  • 'Brachydomoceras belongs to Polyelasmoceratidae'
  • 'Bradfordoceras belongs to Cayutoceratinae'
  • 'Brevicoceras belongs to Brevicoceratidae'
  • 'Brevicoceratidae belongs to Oncocerida'
  • 'Bridgeoceras belongs to Ellesmeroceratidae'
  • 'Broeggeroceras belongs to Westonoceratidae'
  • 'Buchanoceras belongs to Cayutoceratinae'
  • 'Buehleroceras belongs to Ellesmeroceratidae'
  • 'Burenoceras belongs to Ellesmeroceratidae'
  • 'Buttsoceras belongs to Troedssonellidae'
  • 'Byronoceras belongs to Acleistoceratidae'
  • 'Calhounoceras belongs to Actinocerida'
  • 'Callaionautilus belongs to Clydonautilidae'
  • 'Calocyrtoceras belongs to Paraphragmitidae'
  • 'Cameroceras belongs to Endoceratidae'
  • 'Campbelloceras belongs to Tarphyceratidae'
  • 'Campendoceras belongs to Proterocameroceratidae'
  • 'Campyloceras belongs to Pseudactinoceratinae'
  • 'Carbactinoceras belongs to Carbactinoceratidae'
  • 'Carbactinoceratidae belongs to Actinocerida'
  • 'Carinonautilus belongs to Nautilidae'
  • 'Carlloceras belongs to Centroceratidae'
  • 'Caseoceras belongs to Ellesmeroceratidae'
  • 'Cassinoceras belongs to Piloceratidae'
  • 'Casteroceras belongs to Rutoceratidae'
  • 'Catoraphinoceras belongs to Protocycloceratidae'
  • 'Catyrephoceras belongs to Lechritrochoceratidae'
  • 'Cayugoceras belongs to Mandaloceratidae'
  • 'Cayutoceras belongs to Cayutoceratinae'
  • 'Cayutoceratinae belongs to Pseudorthoceratidae'
  • 'Cenoceras belongs to Nautilidae'
  • 'Centroceras belongs to Centroceratidae'
  • 'Centroceratidae belongs to Trigonocerataceae'
  • 'Centrocyrtoceras belongs to Barrandoceratidae'
  • 'Centrolitoceras belongs to Rutoceratidae'
  • 'Centroonoceras belongs to Sactorthoceratidae'
  • 'Centrorizoceras belongs to Oncoceratidae'
  • 'Centrotarphyceras belongs to Tarphyceratidae'
  • 'Chadwickoceras belongs to Acleistoceratidae'
  • 'Changkiuoceras belongs to Endoceratoidea'
  • 'Charactoceras belongs to Apsidoceratidae'
  • 'Charactocerina belongs to Apsidoceratidae'
  • 'Chazyoceras belongs to Endoceratidae'
  • 'Chepuloceras belongs to Ellesmeroceratidae'
  • 'Chicagooceras belongs to Orthocerida'
  • 'Chidleyenoceras belongs to Apsidoceratidae'
  • 'Chihlioceras belongs to Chihlioceratidae'
  • 'Chihlioceratidae belongs to Endocerida'
  • 'Choanoceras belongs to Choanoceratidae'
  • 'Chouteauoceras belongs to Trigonoceratidae'
  • 'Cimomia belongs to Hercoglossidae'
  • 'Cinctoceras belongs to Mandaloceratidae'
  • 'Clarkesvillia belongs to Westonoceratidae'
  • 'Clarkoceras belongs to Ellesmeroceratidae'
  • 'Clathroceras belongs to Trimeroceratidae'
  • 'Clelandoceras belongs to Ellesmeroceratidae'
  • 'Cliftonoceras belongs to Uranoceratidae'
  • 'Clinoceras belongs to Clinoceratidae'
  • 'Clionyssiceras belongs to Acleistoceratidae'
  • 'Clitendoceras belongs to Proterocameroceratidae'
  • 'Clydonautilaceae belongs to Nautilida'
  • 'Clydonautilidae belongs to Clydonautilaceae'
  • 'Clydonautilus belongs to Clydonautilidae'
  • 'Clymenonautilus belongs to Syringonautilidae'
  • 'Clytoceras belongs to Estonioceratidae'
  • 'Cochleiferoceras belongs to Bactritida'
  • 'Cochlioceras belongs to Baltoceratidae'
  • 'Codoceras belongs to Polyelasmoceratidae'
  • 'Coelocyrtoceras belongs to Polyelasmoceratidae'
  • 'Coelogasteroceras belongs to Liroceratidae'
  • 'Colpoceras belongs to Endoceratoidea'
  • 'Columenoceras belongs to Geisonoceratidae'
  • 'Conchorhynchus belongs to Cephalopoda'
  • 'Condraoceras belongs to Liroceratidae'
  • 'Conoceras belongs to Endoceratoidea'
  • 'Conocerina belongs to Ellesmeroceratidae'
  • 'Conostichoceras belongs to Nothoceratidae'
  • 'Conradoceras belongs to Hemiphragmoceratidae'
  • 'Cooperoceras belongs to Tainoceratidae'
  • 'Coreanoceras belongs to Manchuroceratidae'
  • 'Cosmonautilus belongs to Clydonautilidae'
  • 'Cotteroceras belongs to Proterocameroceratidae'
  • 'Crateroceras belongs to Acleistoceratidae'
  • 'Cryptorthoceras belongs to Spyroceratinae'
  • 'Ctenobactrites belongs to Bactritidae'
  • 'Ctenobactrites (Ctenobactrites) belongs to Ctenobactrites'
  • 'Ctenobactrites (Ctenobactrites) belongs to Ctenobactrites' according to Shimanskiy 1951
  • 'Ctenobactrites (Mirites) belongs to Ctenobactrites' according to Shimanskiy 1962
  • 'Ctenobactrites (Mirites) belongs to Ctenobactrites'
  • 'Ctenoceras belongs to Orthoceratinae'
  • 'Cumberloceras belongs to Ellesmeroceratidae'
  • 'Cumingsoceras belongs to Uranoceratidae'
  • 'Curtoceras belongs to Trocholitidae'
  • 'Cyclobactrites belongs to Bactritida'
  • 'Cycloceras belongs to Orthocerida'
  • 'Cyclocyrtendoceras belongs to Cyrtendoceratidae'
  • 'Cyclolituites belongs to Lituitidae'
  • 'Cyclopites belongs to Polyelasmoceratidae'
  • 'Cycloplectoceras belongs to Tarphyceratidae'
  • 'Cyclostomiceras belongs to Ellesmeroceratidae'
  • 'Cymatoceratidae belongs to Nautilitaceae'
  • 'Cymatonautilus belongs to Cymatoceratidae'
  • 'Cyptendoceras belongs to Proterocameroceratidae'
  • 'Cyrtactinoceras belongs to Proteoceratidae'
  • 'Cyrtendoceras belongs to Cyrtendoceratidae'
  • 'Cyrtendoceratidae belongs to Endocerida'
  • 'Cyrthoceratites belongs to Nothoceratidae'
  • 'Cyrtobactrites belongs to Bactritidae'
  • 'Cyrtoceratites belongs to Archiacoceratidae'
  • 'Cyrtocerina belongs to Cyrtocerinidae'
  • 'Cyrtocerinidae belongs to Ellesmerocerida'
  • 'Cyrtocheilus belongs to Polyelasmoceratidae'
  • 'Cyrtocycloceras belongs to Paraphragmitidae'
  • 'Cyrtogomphoceras belongs to Cyrtogomphoceratidae'
  • 'Cyrtogomphus belongs to Poterioceratidae'
  • 'Cyrtonybyoceras belongs to Armenoceratidae'
  • 'Cyrtorizoceras belongs to Oncoceratidae'
  • 'Cyrtospyroceras belongs to Spyroceratinae'
  • 'Cyrtothoracoceras belongs to Spyroceratinae'
  • 'Cyrtovaginoceras belongs to Cyrtendoceratidae'
  • 'Dakeoceras belongs to Ellesmeroceratidae'
  • 'Danaoceras belongs to Polyelasmoceratidae'
  • 'Danoceras belongs to Diestoceratidae'
  • 'Dartoceras belongs to Cephalopoda'
  • 'Dawsonoceras belongs to Dawsonoceratidae'
  • 'Dawsonoceratidae belongs to Orthocerida'
  • 'Dawsonocerina belongs to Dawsonoceratidae'
  • 'Deckeroceras belongs to Apsidoceratidae'
  • 'Deiroceras belongs to Ormoceratidae'
  • 'Deltocymatoceras belongs to Cymatoceratidae'
  • 'Deltoidonautilus belongs to Hercoglossidae'
  • 'Dentoceras belongs to Scyphoceratidae'
  • 'Desioceras belongs to Ellesmeroceratidae'
  • 'Devonobactrites belongs to Bactritida'
  • 'Devonocheilus belongs to Archiacoceratidae'
  • 'Diademoceras belongs to Rutoceratidae'
  • 'Diagoceras belongs to Spyroceratinae'
  • 'Diastoloceras belongs to Protocycloceratidae'
  • 'Dictyoceras belongs to Orthocerida'
  • 'Diestoceras belongs to Diestoceratidae'
  • 'Diestoceratidae belongs to Oncoceratida'
  • 'Digenuoceras belongs to Oncoceratidae'
  • 'Diodoceras belongs to Trigonoceratidae'
  • 'Diorugoceras belongs to Centroceratidae'
  • 'Diploceras belongs to Endoceratoidea'
  • 'Discitoceras belongs to Trigonoceratidae'
  • 'Discoactinoceras belongs to Huroniidae'
  • 'Discoceras belongs to Trocholitidae'
  • 'Discosorida belongs to Nautiloidea'
  • 'Discosoridae belongs to Discosorida'
  • 'Discosorus belongs to Discosoridae'
  • 'Dnestroceras belongs to Cayutoceratinae'
  • 'Dolorthoceras belongs to Spyroceratinae'
  • 'Domatoceras belongs to Grypoceratidae'
  • 'Donacoceras belongs to Orthocerida'
  • 'Dowlingoceras belongs to Diestoceratidae'
  • 'Duerleyoceras belongs to Rutoceratidae'
  • 'Dunleithoceras belongs to Oncoceratidae'
  • 'Dwightoceras belongs to Bassleroceratidae'
  • 'Dyscritoceras belongs to Bassleroceratidae'
  • 'Ecdyceras belongs to Hebetoceratidae'
  • 'Ectocycloceras belongs to Protocycloceratidae'
  • 'Ectocyrtoceras belongs to Acleistoceratidae'
  • 'Edaphoceras belongs to Koninckioceratidae'
  • 'Ehlersoceras belongs to Oncoceratidae'
  • 'Eichwaldoceras belongs to Estonioceratidae'
  • 'Eifeloceras belongs to Pseudorthoceratinae'
  • 'Ekwanoceras belongs to Oncoceratidae'
  • 'Eleusoceras belongs to Brevicoceratidae'
  • 'Ellesmeroceras belongs to Ellesmeroceratidae'
  • 'Ellesmeroceratida is corrected as Ellesmerocerida and belongs to Nautiloidea'
  • 'Ellesmeroceratidae belongs to Ellesmerocerida'
  • 'Ellinoceras belongs to Actinoceratidae'
  • 'Elrodoceras belongs to Armenoceratidae'
  • 'Emmonsoceras belongs to Emmonsoceratidae'
  • 'Emmonsoceratidae belongs to Endocerida'
  • 'Encoiloceras belongs to Tainoceratidae'
  • 'Endoceras belongs to Endoceratidae'
  • 'Endoceratidae belongs to Endocerida'
  • 'Endoceratoidea belongs to Cephalopoda'
  • 'Endocerida belongs to Endoceratoidea'
  • 'Endocycloceras belongs to Protocycloceratidae'
  • 'Endodiscosorus belongs to Lowoceratidae'
  • 'Endolobus belongs to Koninckioceratidae'
  • 'Endoplanoceras belongs to Nephriticeratidae'
  • 'Endoplectoceras belongs to Phragmoceratidae'
  • 'Enoploceras belongs to Tainoceratidae'
  • 'Eobactrites belongs to Bactritidae'
  • 'Eorizoceras belongs to Graciloceratidae'
  • 'Eothinoceras belongs to Bathmoceratidae'
  • 'Eotrimeroceras belongs to Trimeroceratidae'
  • 'Eotripteroceras belongs to Michelinoceratinae'
  • 'Ephippioceras belongs to Ephippoceratidae'
  • 'Ephippiorthoceras belongs to Proteoceratidae'
  • 'Ephippoceratidae belongs to Clydonautilaceae'
  • 'Epicymatoceras belongs to Cymatoceratidae'
  • 'Epidomatoceras belongs to Grypoceratidae'
  • 'Epistroboceras belongs to Trigonoceratidae'
  • 'Eremoceras belongs to Ellesmeroceratidae'
  • 'Eridites belongs to Spyroceratinae'
  • 'Erlangericheilus belongs to Cephalopoda'
  • 'Escharendoceras belongs to Proterocameroceratidae'
  • 'Eskimoceras belongs to Ormoceratidae'
  • 'Estonioceras belongs to Estonioceratidae'
  • 'Eucymatoceras belongs to Cymatoceratidae'
  • 'Eudoceras belongs to Oncoceratida'
  • 'Euloxoceras belongs to Spyroceratinae'
  • 'Euryrizoceras belongs to Acleistoceratidae'
  • 'Eurystomites belongs to Tarphyceratidae'
  • 'Eusthenoceras belongs to Pseudactinoceratinae'
  • 'Eutrephoceras belongs to Nautilidae'
  • 'Evencoceras belongs to Intejoceratidae'
  • 'Evlanoceras belongs to Polyelasmoceratidae'
  • 'Exocyrtoceras belongs to Brevicoceratidae'
  • 'Faberoceras belongs to Westonoceratidae'
  • 'Fayettoceras belongs to Valcouroceratidae'
  • 'Floweroceras belongs to Actinoceratidae'
  • 'Foerstellites belongs to Endoceratidae'
  • 'Foersteoceras belongs to Brevicoceratidae'
  • 'Foordiceras belongs to Koninckioceratidae'
  • 'Franklinoceras belongs to Ruedemannoceratidae'
  • 'Fremontoceras belongs to Apsidoceratidae'
  • 'Fusicoceras belongs to Spyroceratinae'
  • 'Galtoceras belongs to Acleistoceratidae'
  • 'Garryoceras belongs to Orthocerida'
  • 'Gasconsoceras belongs to Barrandoceratidae'
  • 'Gaspocyrtoceras belongs to Paraphragmitidae'
  • 'Geisonoceras belongs to Geisonoceratidae'
  • 'Geisonoceratidae belongs to Orthocerataceae'
  • 'Geisonoceroides belongs to Spyroceratinae'
  • 'Germanonautilus belongs to Tainoceratidae'
  • 'Glenisteroceras belongs to Troedssonellidae'
  • 'Glossoceras belongs to Ascoceratinae'
  • 'Glyptodendron belongs to Westonoceratidae'
  • 'Goldringia belongs to Rutoceratidae'
  • 'Gomphoceras belongs to Oncoceratida'
  • 'Gonatocheilus belongs to Cephalopoda'
  • 'Gonatocyrtoceras belongs to Acleistoceratidae'
  • 'Gonioceras belongs to Gonioceratidae'
  • 'Gonioceratidae belongs to Actinocerida'
  • 'Gonionaedyceras belongs to Brevicoceratidae'
  • 'Gonionautilidae belongs to Clydonautilaceae'
  • 'Gonionautilus belongs to Gonionautilidae'
  • 'Gorbyoceras belongs to Proteoceratidae'
  • 'Gordonoceras belongs to Spyroceratinae'
  • 'Gorgonoceras belongs to Lamellorthoceratidae'
  • 'Graciloceras belongs to Graciloceratidae'
  • 'Graftonoceras belongs to Trocholitidae'
  • 'Greenlandoceras belongs to Greenlandoceratidae'
  • 'Grimsbyoceras belongs to Acleistoceratidae'
  • 'Grypoceras belongs to Grypoceratidae'
  • 'Grypoceras (Plummeroceras) was reranked as Plummeroceras and belongs to Grypoceratidae'
  • 'Grypoceras (Plummeroceras) plummeri is recombined as Plummeroceras plummeri'
  • 'Grypoceratidae belongs to Trigonocerataceae'
  • 'Gryponautilus belongs to Grypoceratidae'
  • 'Gyronaedyceras belongs to Brevicoceratidae'
  • 'Gzheloceras belongs to Tainoceratidae'
  • 'Gzheloceratidae is a subjective synonym of Tainoceratidae'
  • 'Hadoceras belongs to Tripteroceratidae'
  • 'Hadrocheilus belongs to Cephalopoda'
  • 'Hadrocheilus (Arcuatobeccus) belongs to Hadrocheilus' according to Shimanskiy 1947
  • 'Hadrocheilus (Arcuatobeccus) belongs to Hadrocheilus'
  • 'Hadrocheilus (Convexiterbeccus) belongs to Hadrocheilus'
  • 'Hadrocheilus (Convexiterbeccus) belongs to Hadrocheilus' according to Shimanskiy 1947
  • 'Hadrocheilus (Dentatobeccus) belongs to Hadrocheilus'
  • 'Hadrocheilus (Dentatobeccus) belongs to Hadrocheilus' according to Shimanskiy 1947
  • 'Hadrocheilus (Globosobeccus) belongs to Hadrocheilus'
  • 'Hadrocheilus (Globosobeccus) belongs to Hadrocheilus' according to Shimanskiy 1947
  • 'Hadrocheilus (Hadrocheilus) belongs to Hadrocheilus' according to Till 1907
  • 'Hadrocheilus (Hadrocheilus) belongs to Hadrocheilus'
  • 'Halloceras belongs to Rutoceratidae'
  • 'Hardmanoceras belongs to Trocholitidae'
  • 'Harrisoceras belongs to Geisonoceratidae'
  • 'Haydenoceras belongs to Barrandoceratidae'
  • 'Hebetoceras belongs to Hebetoceratidae'
  • 'Hecatoceras belongs to Westonoceratidae'
  • 'Hedstroemoceras belongs to Cephalopoda'
  • 'Heloceras belongs to Orthocerida'
  • 'Hemiceratites belongs to Endoceratoidea'
  • 'Hemichoanella belongs to Ellesmeroceratidae'
  • 'Hemiliroceras belongs to Liroceratidae'
  • 'Heminautilus belongs to Cymatoceratidae'
  • 'Hemiphragmoceras belongs to Hemiphragmoceratidae'
  • 'Hemiphragmoceratidae belongs to Oncoceratida'
  • 'Hemipiloceras belongs to Endoceratoidea'
  • 'Heracloceras belongs to Nephriticeratidae'
  • 'Hercoceras belongs to Rutoceratidae'
  • 'Hercocyrtoceras belongs to Acleistoceratidae'
  • 'Hercoglossa belongs to Hercoglossidae'
  • 'Hercoglossidae belongs to Nautilitaceae'
  • 'Herkimeroceras belongs to Jovellaniidae'
  • 'Hesperoceras belongs to Michelinoceratinae'
  • 'Heteroceratidae belongs to Ancylocerataceae'
  • 'Hexagonites belongs to Tainoceratidae'
  • 'Hexameroceras belongs to Hemiphragmoceratidae'
  • 'Hindeoceras belongs to Rutoceratidae'
  • 'Hipparionoceras belongs to Polyelasmoceratidae'
  • 'Holconautilus belongs to Tainoceratidae'
  • 'Holmiceras belongs to Lituitidae'
  • 'Homaloceras belongs to Centroceratidae'
  • 'Homoadelphoceras belongs to Rutoceratidae'
  • 'Hopeioceras belongs to Actinocerida'
  • 'Humeoceras belongs to Humeoceratidae'
  • 'Humeoceratidae belongs to Endocerida'
  • 'Hunanoceras belongs to Tainoceratidae'
  • 'Huronia belongs to Huroniidae'
  • 'Huroniella belongs to Huroniidae'
  • 'Huroniidae belongs to Actinocerida'
  • 'Indonautilus belongs to Liroceratidae'
  • 'Intejoceras belongs to Intejoceratidae'
  • 'Intejoceratidae belongs to Intejocerida'
  • 'Intejocerida belongs to Endoceratoidea'
  • 'Inversoceras belongs to Trimeroceratidae'
  • 'Isorthoceras belongs to Proteoceratidae'
  • 'Jasperoceras belongs to Trocholitidae'
  • 'Joachimoceras belongs to Geisonoceratidae'
  • 'Jolietoceras belongs to Uranoceratidae'
  • 'Jonesoceras belongs to Geisonoceratidae'
  • 'Jovellania belongs to Jovellaniidae'
  • 'Jovellaniidae belongs to Oncoceratida'
  • 'Juvavionautilus belongs to Syringonautilidae'
  • 'Kailuanoceras belongs to Endoceratoidea'
  • 'Kaipingoceras belongs to Endoceratoidea'
  • 'Karoceras belongs to Karoceratidae'
  • 'Karoceratidae belongs to Oncoceratida'
  • 'Kawasakiceras belongs to Endoceratidae'
  • 'Kayoceras belongs to Lowoceratidae'
  • 'Kentlandoceras belongs to Oncoceratidae'
  • 'Kiaeroceras belongs to Cyrtogomphoceratidae'
  • 'Kindleoceras belongs to Valcouroceratidae'
  • 'Kionoceras belongs to Kionoceratinae'
  • 'Kirkoceras belongs to Proterocameroceratidae'
  • 'Knightoceras belongs to Koninckioceratidae'
  • 'Kochoceras belongs to Actinoceratidae'
  • 'Kokenia belongs to Bactritidae'
  • 'Konglungenoceras belongs to Cyrtogomphoceratidae'
  • 'Koninckioceratidae belongs to Tainocerataceae'
  • 'Kotoceras belongs to Endoceratidae'
  • 'Kutorgoceras belongs to Endoceratidae'
  • 'Kyminoceras belongs to Protocycloceratidae'
  • 'Lambeoceras belongs to Gonioceratidae'
  • 'Lamellorthoceras belongs to Lamellorthoceratidae'
  • 'Lamottoceras belongs to Endoceratidae'
  • 'Landeroceras belongs to Cyrtogomphoceratidae'
  • 'Laumontoceras belongs to Jovellaniidae'
  • 'Laureloceras belongs to Barrandoceratidae'
  • 'Lavaloceras belongs to Westonoceratidae'
  • 'Lebetoceras belongs to Ellesmeroceratidae'
  • 'Lechritrochoceras belongs to Lechritrochoceratidae'
  • 'Lechritrochoceratidae belongs to Barrandeoceratida'
  • 'Leptocheilus belongs to Cephalopoda'
  • 'Leptocheilus (Leptocheilus) belongs to Leptocheilus' according to Till 1907
  • 'Leptocheilus (Leptocheilus) belongs to Leptocheilus'
  • 'Leptocheilus (Mesocheilus) belongs to Leptocheilus' according to Till 1909
  • 'Leptocheilus (Mesocheilus) belongs to Leptocheilus'
  • 'Leuroceras belongs to Trigonoceratidae'
  • 'Leurorthoceras belongs to Actinoceratidae'
  • 'Leurotrochoceras belongs to Lechritrochoceratidae'
  • 'Levisoceras belongs to Ellesmeroceratidae'
  • 'Librovitschiceras belongs to Aipoceratidae'
  • 'Linchengoceras belongs to Endoceratoidea'
  • 'Liroceras belongs to Liroceratidae'
  • 'Liroceratidae belongs to Clydonautilaceae'
  • 'Liskeardia belongs to Endoceratidae'
  • 'Lispoceras belongs to Trigonoceratidae'
  • 'Litoceras belongs to Trocholitidae'
  • 'Litogyroceras belongs to Rutoceratidae'
  • 'Lituites belongs to Lituitidae'
  • 'Lituitidae belongs to Tarphycerida'
  • 'Lobendoceras belongs to Proterocameroceratidae'
  • 'Lobobactrites belongs to Bactritidae'
  • 'Lobosiphon belongs to Proterocameroceratidae'
  • 'Loganoceras belongs to Oncoceratidae'
  • 'Lophoceras belongs to Koninckioceratidae'
  • 'Lopingoceras belongs to Spyroceratinae'
  • 'Lorieroceras belongs to Nothoceratidae'
  • 'Lowoceras belongs to Lowoceratidae'
  • 'Lowoceratidae belongs to Discosorida'
  • 'Loxoceras belongs to Orthocerida'
  • 'Loxochoanella belongs to Ellesmeroceratidae'
  • 'Lyckholmoceras belongs to Diestoceratidae'
  • 'Lyecoceras belongs to Paraphragmitidae'
  • 'Lyrioceras belongs to Nephriticeratidae'
  • 'Lysagoroceras belongs to Poterioceratidae'
  • 'Maccoyoceras belongs to Trigonoceratidae'
  • 'Macrodomoceras belongs to Polyelasmoceratidae'
  • 'Macroloxoceras belongs to Pseudactinoceratinae'
  • 'Madiganella belongs to Ruedemannoceratidae'
  • 'Maelonoceras belongs to Oncoceratidae'
  • 'Manchuroceras belongs to Manchuroceratidae'
  • 'Manchuroceratidae belongs to Endocerida'
  • 'Mandaloceras belongs to Mandaloceratidae'
  • 'Mandaloceratidae belongs to Discosorida'
  • 'Manitoulinoceras belongs to Valcouroceratidae'
  • 'Manitouoceras belongs to Proterocameroceratidae'
  • 'Mariceras belongs to Scyphoceratidae'
  • 'Mcqueenoceras belongs to Proterocameroceratidae'
  • 'Mecynoceras belongs to Poterioceratidae'
  • 'Megadisocosorus belongs to Armenoceratidae'
  • 'Megaglossoceras belongs to Ephippoceratidae'
  • 'Meniscoceras belongs to Proterocameroceratidae'
  • 'Menuthionautlis belongs to Grypoceratidae'
  • 'Mesnaquaceras belongs to Geisonoceratidae'
  • 'Mesoceras belongs to Mesoceratidae'
  • 'Mesoceratidae belongs to Discosorida'
  • 'Mesochasmoceras belongs to Trigonoceratidae'
  • 'Metacoceras belongs to Tainoceratidae'
  • 'Metaphragmoceras belongs to Nothoceratidae'
  • 'Metarizoceras belongs to Oncoceratidae'
  • 'Metarmenoceras belongs to Ormoceratidae'
  • 'Metastromatoceras belongs to Cayutoceratinae'
  • 'Metephippiorthoceras belongs to Proteoceratidae'
  • 'Miamoceras belongs to Oncoceratidae'
  • 'Michelinoceras belongs to Michelinoceratinae'
  • 'Michelinoceratinae is an invalid subgroup of Cephalopoda'
  • 'Microbactrites belongs to Parabactritidae'
  • 'Micronoceras belongs to Brevicoceratidae'
  • 'Millkoninckioceras belongs to Koninckioceratidae'
  • 'Minganoceras belongs to Valcouroceratidae'
  • 'Mirabiloceras belongs to Allotrioceratidae'
  • 'Mitorthoceras belongs to Spyroceratinae'
  • 'Mitroceras belongs to Brevicoceratidae'
  • 'Mixosiphonoceras belongs to Jovellaniidae'
  • 'Mojsvaroceras belongs to Tainoceratidae'
  • 'Molossus belongs to Orthocerida'
  • 'Molossus belongs to Mammalia'
  • 'Monocyrtoceras belongs to Armenoceratidae'
  • 'Monomuchites belongs to Proteoceratidae'
  • 'Montyoceras belongs to Hebetoceratidae'
  • 'Mooreoceras belongs to Pseudorthoceratinae'
  • 'Moreauoceras belongs to Tarphyceratidae'
  • 'Mstikhinoceras belongs to Ormoceratidae'
  • 'Muiroceras belongs to Rutoceratidae'
  • 'Multicameroceras belongs to Plectronoceratidae'
  • 'Murrayoceras belongs to Baltoceratidae'
  • 'Mysterioceras belongs to Mysterioceratidae'
  • 'Mysterioceratidae belongs to Pseudorthocerataceae'
  • 'Mysticoceras belongs to Proterocameroceratidae'
  • 'Naedyceras belongs to Brevicoceratidae'
  • 'Nanno belongs to Endoceratidae'
  • 'Narthecoceras belongs to Narthecoceratidae'
  • 'Narthecoceratidae belongs to Endocerida'
  • 'Nassauoceras belongs to Tetragonoceratidae'
  • 'Nautilaceae belongs to Nautilida'
  • 'Nautilida belongs to Nautiloidea'
  • 'Nautilidae belongs to Nautilitaceae'
  • 'Nautiloidea belongs to Cephalopoda'
  • 'Nautilus belongs to Nautilidae'
  • 'Nelimenia belongs to Oncoceratida'
  • 'Neocycloceras belongs to Pseudorthoceratinae'
  • 'Neokaipingoceras belongs to Endoceratoidea'
  • 'Neorthoceras belongs to Orthocerida'
  • 'Nephriticeras belongs to Nephriticeratidae'
  • 'Nephriticeratidae belongs to Barrandeoceratida'
  • 'Nephriticerina belongs to Nephriticeratidae'
  • 'Neptunoceras belongs to Neptunoceratidae'
  • 'Neptunoceratidae belongs to Cephalopoda'
  • 'Neumatoceras belongs to Oncoceratidae'
  • 'Nothoceras belongs to Nothoceratidae'
  • 'Nothoceratidae belongs to Oncoceratida'
  • 'Notocycloceras belongs to Protocycloceratidae'
  • 'Nybyoceras belongs to Armenoceratidae'
  • 'Obinautilus belongs to Nautilidae'
  • 'Octamerella belongs to Hemiphragmoceratidae'
  • 'Oderoceras belongs to Proterocameroceratidae'
  • 'Oelandoceras belongs to Ellesmeroceratidae'
  • 'Offleyoceras belongs to Offleyoceratidae'
  • 'Offleyoceratidae belongs to Orthocerataceae'
  • 'Ohioceras belongs to Kionoceratinae'
  • 'Oncoceras belongs to Oncoceratidae'
  • 'Oncoceratida is corrected as Oncocerida and belongs to Nautiloidea'
  • 'Oncoceratidae belongs to Oncoceratida'
  • 'Oneotoceras belongs to Ellesmeroceratidae'
  • 'Oocerina belongs to Oncoceratidae'
  • 'Oonoceras belongs to Oncoceratidae'
  • 'Ophidoceratidae belongs to Tarphyceratida'
  • 'Ophioceras belongs to Ophidoceratidae'
  • 'Ordosoceras belongs to Polydesmiidae'
  • 'Ormoceras belongs to Ormoceratidae'
  • 'Ormoceratidae belongs to Actinocerida'
  • 'Orthoceras belongs to Orthoceratinae'
  • 'Orthoceratidae belongs to Orthocerataceae'
  • 'Orthocerida belongs to Nautiloidea'
  • 'Orthonybyoceras belongs to Ormoceratidae'
  • 'Osbornoceras belongs to Karoceratidae'
  • 'Ovoceras belongs to Brevicoceratidae'
  • 'Ovocerina belongs to Mandaloceratidae'
  • 'Oxygonioceras belongs to Brevicoceratidae'
  • 'Oxynautilus belongs to Syringonautilidae'
  • 'Pachendoceras belongs to Baltoceratidae'
  • 'Pachtoceras belongs to Oncoceratida'
  • 'Padunoceras belongs to Padunoceratidae'
  • 'Padunoceratidae belongs to Intejocerida'
  • 'Palaeoceras belongs to Plectronoceratidae'
  • 'Palaeoteuthis belongs to Cephalopoda'
  • 'Palmeroceras belongs to Spyroceratinae'
  • 'Paquettoceras belongs to Barrandoceratidae'
  • 'Parabactrites belongs to Parabactritidae'
  • 'Parabactritidae belongs to Bactritida'
  • 'Paracenoceras belongs to Paracenoceratidae'
  • 'Paracenoceratidae belongs to Nautilitaceae'
  • 'Paracleistoceras belongs to Acleistoceratidae'
  • 'Paraconradoceras belongs to Nothoceratidae'
  • 'Paractinoceras belongs to Actinoceratidae'
  • 'Paracyclostomiceras belongs to Ellesmeroceratidae'
  • 'Paracymatoceras belongs to Cymatoceratidae'
  • 'Paradomatoceras belongs to Grypoceratidae'
  • 'Paraendoceras belongs to Proterocameroceratidae'
  • 'Parakionoceras belongs to Kionoceratinae'
  • 'Paraloxoceras belongs to Pseudactinoceratinae'
  • 'Parametacoceras belongs to Tainoceratidae'
  • 'Paranautilus belongs to Liroceratidae'
  • 'Paraphragmites belongs to Paraphragmitidae'
  • 'Paraphragmitidae belongs to Orthocerataceae'
  • 'Parapiloceras belongs to Piloceratidae'
  • 'Pararhiphaeoceras belongs to Rhiphaeoceratidae'
  • 'Pararineceras belongs to Trigonoceratidae'
  • 'Parascoceras belongs to Ascoceratinae'
  • 'Parastenopoceras belongs to Grypoceratidae'
  • 'Paravaginoceras belongs to Endoceratoidea'
  • 'Paroocerina belongs to Oncoceratidae'
  • 'Parormoceras belongs to Ormoceratidae'
  • 'Parryoceras belongs to Cyrtogomphoceratidae'
  • 'Pectinoceras belongs to Polyelasmoceratidae'
  • 'Peismoceras belongs to Lechritrochoceratidae'
  • 'Penhsioceras belongs to Endoceratoidea'
  • 'Pentameroceras belongs to Trimeroceratidae'
  • 'Perimecoceras belongs to Nothoceratidae'
  • 'Perioidanoceras belongs to Acleistoceratidae'
  • 'Peripetoceras belongs to Liroceratidae'
  • 'Permoceras belongs to Permoceratidae'
  • 'Permoceratidae belongs to Trigonocerataceae'
  • 'Permonautilus belongs to Liroceratidae'
  • 'Petryoceras belongs to Spyroceratinae'
  • 'Phacoceras belongs to Centroceratidae'
  • 'Phaedrysmocheilus belongs to Tainoceratidae'
  • 'Phloioceras belongs to Tainoceratidae'
  • 'Phragmoceras belongs to Phragmoceratidae'
  • 'Phragmoceratidae belongs to Discosorida'
  • 'Phragmocerina belongs to Phragmoceratidae'
  • 'Phragmosiphon belongs to Proterocameroceratidae'
  • 'Pictetoceras belongs to Oncoceratida'
  • 'Piersaloceras belongs to Graciloceratidae'
  • 'Piloceras belongs to Piloceratidae'
  • 'Pilotoceras belongs to Tarphyceratidae'
  • 'Pionoceras belongs to Tarphyceratidae'
  • 'Plagiostomoceras belongs to Michelinoceratinae'
  • 'Planetoceras belongs to Koninckioceratidae'
  • 'Platysiphon belongs to Proterocameroceratidae'
  • 'Plectoceras belongs to Plectoceratidae'
  • 'Plectoceratidae belongs to Barrandeoceratida'
  • 'Plectronoceras belongs to Plectronoceratidae'
  • 'Plectronoceratidae belongs to Ellesmerocerida'
  • 'Pleuronautilus belongs to Tainoceratidae'
  • 'Pleuroncoceras belongs to Rutoceratidae'
  • 'Pliendoceras belongs to Proterocameroceratidae'
  • 'Polydesmia belongs to Polydesmiidae'
  • 'Polydesmiidae belongs to Actinocerida'
  • 'Polyelasmoceras belongs to Polyelasmoceratidae'
  • 'Polyelasmoceratidae belongs to Oncoceratida'
  • 'Polygrammoceras belongs to Kionoceratinae'
  • 'Poterioceras belongs to Poterioceratidae'
  • 'Poterioceratidae belongs to Oncoceratida'
  • 'Poteriocerina belongs to Acleistoceratidae'
  • 'Potoceras belongs to Liroceratidae'
  • 'Pradoceras belongs to Endoceratoidea'
  • 'Pristeroceras belongs to Phragmoceratidae'
  • 'Probillingsites belongs to Probillingsitinae'
  • 'Probillingsitinae belongs to Ascoceratidae'
  • 'Proclydonautilus belongs to Clydonautilidae'
  • 'Procymatoceras belongs to Cymatoceratidae'
  • 'Proendoceras belongs to Proterocameroceratidae'
  • 'Projovellania belongs to Jovellaniidae'
  • 'Proteoceras belongs to Proteoceratidae'
  • 'Proteoceratidae belongs to Pseudorthocerataceae'
  • 'Proterocameroceras belongs to Proterocameroceratidae'
  • 'Proterovaginoceras belongs to Endoceratidae'
  • 'Protobactrites belongs to Orthocerida'
  • 'Protocycloceras belongs to Protocycloceratidae'
  • 'Protokionoceras belongs to Geisonoceratidae'
  • 'Protophragmoceras belongs to Phragmoceratidae'
  • 'Pselioceras belongs to Grypoceratidae'
  • 'Pseudactinoceras belongs to Pseudactinoceratinae'
  • 'Pseudactinoceratinae belongs to Pseudorthoceratidae'
  • 'Pseudaganides belongs to Pseudonautilidae'
  • 'Pseudobactrites belongs to Bactritidae'
  • 'Pseudocenoceras belongs to Nautilidae'
  • 'Pseudocycloceras belongs to Spyroceratinae'
  • 'Pseudocyrtoceras belongs to Pseudorthoceratinae'
  • 'Pseudogomphoceras belongs to Mandaloceratidae'
  • 'Pseudonautilidae belongs to Nautilitaceae'
  • 'Pseudonautilus belongs to Pseudonautilidae'
  • 'Pseudorthoceras belongs to Pseudorthoceratinae'
  • 'Pseudorthoceratidae belongs to Pseudorthocerataceae'
  • 'Pseudorthoceratinae belongs to Pseudorthoceratidae'
  • 'Psiaoceras belongs to Tripleuroceratidae'
  • 'Ptenoceras belongs to Rutoceratidae'
  • 'Ptyssoceras belongs to Rutoceratidae'
  • 'Pycnoceras belongs to Estonioceratidae'
  • 'Quebecoceras belongs to Ellesmeroceratidae' according to Foerste 1925
  • 'Rasmussenoceras belongs to Tripteroceratidae'
  • 'Rayonnoceras belongs to Carbactinoceratidae'
  • 'Reedsoceras belongs to Westonoceratidae'
  • 'Reticycloceras belongs to Spyroceratinae'
  • 'Retroclitendoceras belongs to Proterocameroceratidae'
  • 'Rhadinoceras belongs to Nephriticeratidae'
  • 'Rhiphaeoceras belongs to Rhiphaeoceratidae'
  • 'Rhiphaeoceratidae belongs to Tainocerataceae'
  • 'Rhiphaeonautilus belongs to Rhiphaeoceratidae'
  • 'Rhomboceras belongs to Acleistoceratidae'
  • 'Rhyncholite belongs to Cephalopoda'
  • 'Rhynchorthoceras belongs to Lituitidae'
  • 'Rhynchoteuthis belongs to Cephalopoda'
  • 'Richardsonoceras belongs to Oncoceratidae'
  • 'Rineceras belongs to Trigonoceratidae'
  • 'Ringoceras belongs to Graciloceratidae'
  • 'Rizoceras belongs to Oncoceratidae'
  • 'Robsonoceras belongs to Robsonoceratidae' according to Ulrich and Foerste 1933
  • 'Romingoceras belongs to Oncoceratidae'
  • 'Roussanoffoceras belongs to Rutoceratidae'
  • 'Rudolfoceras belongs to Protocycloceratidae'
  • 'Ruedemannoceras belongs to Ruedemannoceratidae'
  • 'Ruedemannoceratidae belongs to Discosorida'
  • 'Ruthenoceras belongs to Plectronoceratidae'
  • 'Rutoceras belongs to Rutoceratidae'
  • 'Rutoceratidae belongs to Tainocerataceae'
  • 'Sactorthoceras belongs to Sactorthoceratidae'
  • 'Sactorthoceratidae belongs to Orthocerataceae'
  • 'Saffordoceras belongs to Actinoceratidae'
  • 'Sannionites belongs to Orthocerida'
  • 'Savageoceras belongs to Barrandoceratidae'
  • 'Scaptorrhynchus belongs to Cephalopoda'
  • 'Sceptrites belongs to Spyroceratinae'
  • 'Schuchertoceras belongs to Ascoceratinae'
  • 'Scofieldoceras belongs to Oncoceratidae'
  • 'Scyphoceras belongs to Scyphoceratidae'
  • 'Scyphoceratidae belongs to Aipocerataceae'
  • 'Seelyoceras belongs to Tarphyceratidae'
  • 'Selkirkoceras belongs to Armenoceratidae'
  • 'Shamattawaceras belongs to Probillingsitinae'
  • 'Shantungendoceras belongs to Ellesmeroceratidae' according to Sun 1937
  • 'Shideleroceras belongs to Shideleroceratidae'
  • 'Shideleroceratidae belongs to Ellesmerocerida'
  • 'Shikhanoceras belongs to Spyroceratinae'
  • 'Sholakoceras belongs to Rhiphaeoceratidae'
  • 'Shumardoceras belongs to Estonioceratidae'
  • 'Shuranoceras belongs to Karoceratidae'
  • 'Siberionautilidae belongs to Clydonautilaceae'
  • 'Siberionautilus belongs to Siberionautilidae'
  • 'Sibyllonautilus belongs to Liroceratidae'
  • 'Sicilioceras belongs to Bactritidae'
  • 'Sidemina belongs to Endoceratoidea'
  • 'Sigmocycloceras belongs to Sactorthoceratidae'
  • 'Simardoceras belongs to Westonoceratidae'
  • 'Simorthoceras belongs to Pseudorthoceratinae'
  • 'Sinclairoceras belongs to Westonoceratidae'
  • 'Sinoceras belongs to Michelinoceratinae'
  • 'Sinoeremoceras belongs to Plectronoceratidae'
  • 'Slocomoceras belongs to Acleistoceratidae'
  • 'Smithvilloceras belongs to Ellesmeroceratidae'
  • 'Solenochilidae belongs to Aipocerataceae'
  • 'Solenochilus belongs to Solenochilidae'
  • 'Somalinautilus belongs to Paracenoceratidae'
  • 'Sphooceras belongs to Sphooceratidae'
  • 'Sphooceratidae belongs to Orthocerataceae'
  • 'Sphyradoceras belongs to Nephriticeratidae'
  • 'Staufferoceras belongs to Valcouroceratidae'
  • 'Stearoceras belongs to Grypoceratidae'
  • 'Stemtonoceras belongs to Ellesmeroceratidae'
  • 'Stenogomphoceras belongs to Trimeroceratidae'
  • 'Stenopoceras belongs to Grypoceratidae'
  • 'Stenosiphon belongs to Proterocameroceratidae'
  • 'Stereoplasmoceras belongs to Stereoplasmoceratidae'
  • 'Stereoplasmoceratidae belongs to Pseudorthocerataceae'
  • 'Stereospyroceras belongs to Proteoceratidae'
  • 'Stereotoceras belongs to Brevicoceratidae'
  • 'Sthenoceras belongs to Phragmoceratidae'
  • 'Stokesoceras belongs to Lowoceratidae'
  • 'Stolbovoceras belongs to Armenoceratidae'
  • 'Strandoceras belongs to Cyrtogomphoceratidae'
  • 'Streptoceras belongs to Acleistoceratidae'
  • 'Striacoceras belongs to Geisonoceratidae'
  • 'Strionautilus belongs to Nautilidae'
  • 'Stroboceras belongs to Trigonoceratidae'
  • 'Stromatoceras belongs to Cayutoceratinae'
  • 'Strophiceras belongs to Centroceratidae'
  • 'Subclymenia belongs to Trigonoceratidae'
  • 'Subpenhsioceras belongs to Endoceratoidea'
  • 'Subspyroceras belongs to Orthocerida'
  • 'Subtofangoceras belongs to Actinocerida'
  • 'Subvestinautilus belongs to Koninckioceratidae'
  • 'Suecoceras belongs to Endoceratidae'
  • 'Suttonoceras belongs to Diestoceratidae'
  • 'Sycoceras belongs to Oncoceratida'
  • 'Syringoceras belongs to Syringonautilidae'
  • 'Syringonautilidae belongs to Trigonocerataceae'
  • 'Syringonautilus belongs to Syringonautilidae'
  • 'Syrionautilus belongs to Cymatoceratidae'
  • 'Syrreghmatoceras belongs to Rutoceratidae'
  • 'Systrophoceras belongs to Lechritrochoceratidae'
  • 'Tabantaloceras belongs to Parabactritidae'
  • 'Tainionautilus belongs to Tainoceratidae'
  • 'Tainoceras belongs to Tainoceratidae'
  • 'Tainocerataceae belongs to Nautilida'
  • 'Tainoceratidae belongs to Tainocerataceae'
  • 'Talassoceras belongs to Thylacoceratidae'
  • 'Tallinnoceras belongs to Emmonsoceratidae'
  • 'Tanchiashanites belongs to Tainoceratidae'
  • 'Tarphyceras belongs to Tarphyceratidae'
  • 'Tarphyceratida is corrected as Tarphycerida and belongs to Nautiloidea'
  • 'Tasmanoceras belongs to Endoceratidae'
  • 'Teichertoceras belongs to Westonoceratidae'
  • 'Temnocheilus belongs to Koninckioceratidae'
  • 'Temperoceras belongs to Geisonoceratidae'
  • 'Tetragonoceras belongs to Tetragonoceratidae'
  • 'Tetragonoceratidae belongs to Tainocerataceae'
  • 'Tetrameroceras belongs to Hemiphragmoceratidae'
  • 'Tetranodoceras belongs to Rutoceratidae'
  • 'Tetrapleuroceras belongs to Neptunoceratidae'
  • 'Thoracoceras belongs to Kionoceratinae'
  • 'Threaroceras belongs to Rutoceratidae'
  • 'Thrincoceras belongs to Trigonoceratidae'
  • 'Thuringionautilus belongs to Tainoceratidae'
  • 'Thylacoceras belongs to Thylacoceratidae'
  • 'Thylacoceratidae belongs to Endocerida'
  • 'Tienoceras belongs to Orthocerida'
  • 'Tillicheilus belongs to Cephalopoda'
  • 'Tirolonautilus belongs to Tainoceratidae'
  • 'Titanoceras belongs to Grypoceratidae'
  • 'Tithonoceras belongs to Paracenoceratidae'
  • 'Tofangoceras belongs to Proteoceratidae'
  • 'Trachynautilus belongs to Tainoceratidae'
  • 'Tragoceras belongs to Estonioceratidae'
  • 'Trematoceras belongs to Michelinoceratinae'
  • 'Tretoceras belongs to Orthocerida'
  • 'Triendoceras belongs to Endoceratidae'
  • 'Trifurcatoceras belongs to Endoceratoidea'
  • 'Trigonoceras belongs to Trigonoceratidae'
  • 'Trigonocerataceae belongs to Nautilida'
  • 'Trigonoceratidae belongs to Trigonocerataceae'
  • 'Trigonodema belongs to Oncoceratida'
  • 'Trilacinoceras belongs to Lituitidae'
  • 'Trimeroceras belongs to Trimeroceratidae'
  • 'Trimeroceratidae belongs to Oncoceratida'
  • 'Tripleuroceras belongs to Tripleuroceratidae'
  • 'Tripleuroceratidae belongs to Oncoceratida'
  • 'Triplooceras belongs to Nephriticeratidae'
  • 'Tripteroceras belongs to Tripteroceratidae'
  • 'Tripteroceratidae belongs to Oncoceratida'
  • 'Tripterocerina belongs to Tripteroceratidae'
  • 'Tripteroceroides belongs to Spyroceratinae'
  • 'Trochoceras belongs to Rutoceratidae'
  • 'Trochodictyoceras belongs to Lechritrochoceratidae'
  • 'Trocholites belongs to Trocholitidae'
  • 'Trocholitidae belongs to Tarphyceratida'
  • 'Trocholitoceras belongs to Trocholitidae'
  • 'Troedssonella belongs to Troedssonellidae'
  • 'Troedssonoceras belongs to Ormoceratidae'
  • 'Troostoceras belongs to Actinoceratidae'
  • 'Tubiferoceras belongs to Phragmoceratidae'
  • 'Tumidoceras belongs to Acleistoceratidae'
  • 'Turnoceras belongs to Nothoceratidae'
  • 'Turoceras belongs to Polyelasmoceratidae'
  • 'Tuyloceras belongs to Lowoceratidae'
  • 'Tylodiscoceras belongs to Koninckioceratidae'
  • 'Tylonautilus belongs to Tainoceratidae'
  • 'Tylorthoceras belongs to Rutoceratidae'
  • 'Tyrioceras belongs to Lituitidae'
  • 'Ulrichoceras belongs to Cyrtogomphoceratidae'
  • 'Umbeloceras belongs to Mandaloceratidae'
  • 'Uralorthoceras belongs to Pseudorthoceratinae'
  • 'Uranoceras belongs to Uranoceratidae'
  • 'Uranoceratidae belongs to Barrandeoceratida'
  • 'Utoceras belongs to Piloceratidae'
  • 'Vaginoceras belongs to Endoceratidae'
  • 'Valcouroceras belongs to Valcouroceratidae'
  • 'Valcouroceratidae belongs to Oncoceratida'
  • 'Vaningenoceras belongs to Endoceratidae'
  • 'Vassaroceras belongs to Protocycloceratidae'
  • 'Vaupelia belongs to Oncoceratidae'
  • 'Venatoroceras belongs to Scyphoceratidae'
  • 'Ventroloboceras belongs to Ellesmeroceratidae'
  • 'Verticoceras belongs to Brevicoceratidae'
  • 'Vespoceras belongs to Mandaloceratidae'
  • 'Vestinautilus belongs to Trigonoceratidae'
  • 'Virgaloceras belongs to Grypoceratidae'
  • 'Virgoceras belongs to Geisonoceratidae'
  • 'Wadeoceras belongs to Polyelasmoceratidae'
  • 'Walcottoceras belongs to Protocycloceratidae'
  • 'Wanwanoceras belongs to Plectronoceratidae'
  • 'Welleroceras belongs to Poterioceratidae'
  • 'Wellsoceras belongs to Tetragonoceratidae'
  • 'Westonoceras belongs to Westonoceratidae'
  • 'Westonoceratidae belongs to Discosorida'
  • 'Wetherbyoceras belongs to Oncoceratida'
  • 'Whiteavesites belongs to Clinoceratidae'
  • 'Whitfieldoceras belongs to Clinoceratidae'
  • 'Wichitoceras belongs to Trocholitidae'
  • 'Wilsonoceras belongs to Apsidoceratidae'
  • 'Winnipegoceras belongs to Westonoceratidae'
  • 'Wissenbachia belongs to Brevicoceratidae'
  • 'Wolungoceras belongs to Troedssonellidae'
  • 'Woosteroceras belongs to Ellesmeroceratidae'
  • 'Worthenoceras belongs to Acleistoceratidae'
  • 'Xenoceras belongs to Poterioceratidae'
  • 'Xenocheilus belongs to Pseudonautilidae'
  • 'Yehlioceras belongs to Endoceratoidea'
  • 'Zittelloceras belongs to Oncoceratidae'