Opinions from T. B. Leonova 2002
- 'Abadehceras belongs to Araxoceratidae'
- 'Abadehceras nakazawai belongs to Abadehceras' according to Bando 1979
- 'Abadehceras nakazawai belongs to Abadehceras'
- 'Abichites belongs to Dzhulfitidae'
- 'Abichites abichi belongs to Abichites'
- 'Adrianitaceae belongs to Adrianitina'
- 'Adrianites belongs to Adrianitinae'
- 'Adrianites (Hoffmannia) was reranked as Hoffmannia and belongs to Hoffmanniidae'
- 'Adrianites (Hoffmannia) burgensis is recombined as Hoffmannia burgensis'
- 'Adrianites (Hoffmannia) hoffmanni is recombined as Hoffmannia hoffmanni'
- 'Adrianites (Neocrimites) meridionalis is recombined as Aricoceras meridionale'
- 'Adrianites adamsi is recombined as Metacrimites adamsi'
- 'Adrianites affinis is recombined as Sizilites affinis'
- 'Adrianites biassalensis is recombined as Sosiocrimites biassalensis'
- 'Adrianites craticulatus is recombined as Sizilites craticulatus'
- 'Adrianites defordi is recombined as Metacrimites defordi'
- 'Adrianites distefanoi is recombined as Palermites distefanoi'
- 'Adrianites dunbari is recombined as Metacrimites dunbari'
- 'Adrianites elegans belongs to Adrianites'
- 'Adrianites ensifer is recombined as Aricoceras ensifer'
- 'Adrianites fredericksi is recombined as Neocrimites fredericksi'
- 'Adrianites haueri is recombined as Epadrianites haueri'
- 'Adrianites insignis is recombined as Sosiocrimites insignis'
- 'Adrianites isomorphus belongs to Adrianites'
- 'Adrianites jialaensis is recombined as Sosiocrimites jialaensis'
- 'Adrianites kingi is recombined as Neoaricoceras kingi'
- 'Adrianites marathonensis is recombined as Metacrimites marathonensis'
- 'Adrianites minuta is recombined as Sosiocrimites minuta'
- 'Adrianites nalivkini is recombined as Neocrimites nalivkini'
- 'Adrianites newelli is recombined as Metacrimites newelli'
- 'Adrianites nitidus is recombined as Sosiocrimites nitidus'
- 'Adrianites plummeri is recombined as Metacrimites plummeri'
- 'Adrianites vinogradovi is recombined as Pamiritella vinogradovi'
- 'Adrianites warreni is recombined as Aricoceras warreni'
- 'Adrianitidae belongs to Adrianitaceae'
- 'Adrianitina belongs to Goniatitida'
- 'Adrianitinae belongs to Adrianitidae'
- 'Agathiceras belongs to Agathiceratidae'
- 'Agathiceras anceps belongs to Agathiceras'
- 'Agathiceras applanatum belongs to Agathiceras'
- 'Agathiceras applini belongs to Agathiceras'
- 'Agathiceras beyrichi belongs to Agathiceras' according to Haniel 1915
- 'Agathiceras beyrichi is recombined as Epadrianites beyrichi'
- 'Agathiceras broweri belongs to Agathiceras' according to Smith 1927
- 'Agathiceras broweri belongs to Agathiceras'
- 'Agathiceras cancellatum is recombined as Aricoceras cancellatum'
- 'Agathiceras ciscoense belongs to Agathiceras'
- 'Agathiceras contractum belongs to Agathiceras'
- 'Agathiceras discoidalis is recombined as Metaricoceras discoidale'
- 'Agathiceras divisum belongs to Agathiceras'
- 'Agathiceras frechi belongs to Agathiceras'
- 'Agathiceras girtyi belongs to Agathiceras'
- 'Agathiceras globosum belongs to Agathiceras' according to Haniel 1915
- 'Agathiceras globosum is recombined as Gaetanoceras globosum'
- 'Agathiceras jilinense belongs to Agathiceras'
- 'Agathiceras krotowi is recombined as Crimites krotowi'
- 'Agathiceras martini belongs to Agathiceras' according to Haniel 1915
- 'Agathiceras martini is recombined as Gaetanoceras martini'
- 'Agathiceras mediterraneum belongs to Agathiceras'
- 'Agathiceras oyensi is recombined as Crimites oyensi'
- 'Agathiceras rothpletzi is recombined as Crimites rothpletzi'
- 'Agathiceras stuckenbergi is recombined as Neocrimites stuckenbergi'
- 'Agathiceras suessi belongs to Agathiceras'
- 'Agathiceras sundaicum belongs to Agathiceras'
- 'Agathiceras texanum is recombined as Texoceras texanum'
- 'Agathiceras timorensis is recombined as Epadrianites timorensis'
- 'Agathiceras timorensis involuta is recombined as Epadrianites involutus'
- 'Agathiceras verkhoyanicum belongs to Agathiceras'
- 'Agathiceras vulgatum belongs to Agathiceras'
- 'Agathiceras wichmanni belongs to Agathiceras' according to Haniel 1915
- 'Agathiceras wichmanni is recombined as Pseudagathiceras wichmanni'
- 'Agathicerataceae belongs to Agathiceratina'
- 'Agathiceratidae belongs to Agathicerataceae'
- 'Agathiceratina belongs to Tornoceratida'
- 'Agoniatitina belongs to Anarcestida'
- 'Akmilleria belongs to Medlicottiinae'
- 'Aksuites belongs to Marathonitinae'
- 'Aksuites permicus belongs to Aksuites'
- 'Aktubinskia belongs to Sicanitinae'
- 'Allothalassoceras belongs to Aristoceratinae'
- 'Almites belongs to Marathonitinae'
- 'Almites dmitrievi belongs to Almites'
- 'Almites leveni belongs to Almites'
- 'Almites multisulcatus belongs to Almites'
- 'Almites pavlovi belongs to Almites'
- 'Almites reverendus belongs to Almites'
- 'Almites transitorius belongs to Almites'
- 'Almites ventrosus belongs to Almites'
- 'Altudoceras belongs to Pseudogastrioceratidae'
- 'Altudoceras boreum belongs to Altudoceras'
- 'Altudoceras guanshanense belongs to Altudoceras'
- 'Altudoceras hunanense belongs to Altudoceras'
- 'Altudoceras jiaheense belongs to Altudoceras'
- 'Altudoceras orientale belongs to Altudoceras'
- 'Altudoceras prodromus is recombined as Roadoceras prodromus'
- 'Altudoceras qiaoxiaense belongs to Altudoceras' according to Zhou 1987
- 'Altudoceras qiaoxiaense belongs to Altudoceras'
- 'Anarcestida belongs to Ammonoidea'
- 'Anarcestina belongs to Anarcestida'
- 'Anatsabites belongs to Atsabitidae'
- 'Anderssonoceras belongs to Anderssonoceratidae'
- 'Anderssonoceras anfuense belongs to Anderssonoceras'
- 'Anderssonoceras hunanense belongs to Anderssonoceras'
- 'Anderssonoceras robustum belongs to Anderssonoceras'
- 'Anderssonoceras simplex belongs to Anderssonoceras'
- 'Anderssonoceratidae belongs to Otocerataceae'
- 'Andrianovia belongs to Somoholitidae'
- 'Anfuceras belongs to Araxoceratidae'
- 'Anfuceras longilobatum belongs to Anfuceras'
- 'Angrenoceras belongs to Mongoloceratidae'
- 'Angrenoceras langcuoense belongs to Angrenoceras' according to Sheng 1988
- 'Angrenoceras langcuoense belongs to Angrenoceras'
- 'Angrenoceras obovatum belongs to Angrenoceras' according to Sheng 1988
- 'Angrenoceras obovatum belongs to Angrenoceras'
- 'Araxoceras belongs to Araxoceratidae'
- 'Araxoceras glenisteri belongs to Araxoceras' according to Ruzhencev 1962
- 'Araxoceras glenisteri belongs to Araxoceras'
- 'Araxoceras kiangsiense belongs to Araxoceras'
- 'Araxoceras latissimum belongs to Araxoceras' according to Ruzhencev 1959
- 'Araxoceras latissimum belongs to Araxoceras'
- 'Araxoceras latum belongs to Araxoceras' according to Ruzhencev 1962
- 'Araxoceras latum belongs to Araxoceras'
- 'Araxoceras rotoides belongs to Araxoceras' according to Ruzhencev 1963
- 'Araxoceras rotoides belongs to Araxoceras'
- 'Araxoceras sinense belongs to Araxoceras'
- 'Araxoceras tectum belongs to Araxoceras' according to Ruzhencev 1963
- 'Araxoceras tectum belongs to Araxoceras'
- 'Araxoceras varicatum belongs to Araxoceras'
- 'Araxoceras varicatum belongs to Araxoceras' according to Ruzhencev 1962
- 'Araxoceratidae belongs to Otocerataceae'
- 'Arcestes (Cyclolobus) persulcatus is recombined as Cyclolobus persulcatus'
- 'Arcestes antiquus is recombined as Stacheoceras antiquum'
- 'Arcestes tridens is recombined as Stacheoceras (Neostacheoceras) tridens'
- 'Aricoceras belongs to Emilitinae'
- 'Aricoceras (Metaricoceras) was reranked as Metaricoceras and belongs to Adrianitinae'
- 'Aricoceras (Neoaricoceras) was reranked as Neoaricoceras and belongs to Adrianitinae'
- 'Aristoceras belongs to Aristoceratinae'
- 'Aristoceras appressum belongs to Aristoceras'
- 'Aristoceras chkalovi belongs to Aristoceras'
- 'Aristoceratinae belongs to Thalassoceratidae'
- 'Aristoceratoides belongs to Aristoceratinae'
- 'Aristoceratoides grunaui belongs to Aristoceratoides' according to Beinert 1971
- 'Aristoceratoides grunaui belongs to Aristoceratoides'
- 'Artinskia belongs to Medlicottiinae'
- 'Artinskia adkinsi is recombined as Akmilleria adkinsi'
- 'Artinskia electraensis is recombined as Akmilleria electraensis'
- 'Artinskia huecoensis is recombined as Akmilleria huecoensis'
- 'Artinskia kazakhstanica belongs to Artinskia'
- 'Artinskia lilianae belongs to Artinskia'
- 'Artinskia loeiensis is recombined as Bamyaniceras loeiensis'
- 'Artinskia multituberculata belongs to Artinskia'
- 'Artinskia multituberculata belongs to Artinskia' according to Ruzhencev 1938
- 'Artinskia nalivkini belongs to Artinskia'
- 'Artinskia notabilis is recombined as Aktubinskia notabilis'
- 'Artinskia separata belongs to Artinskia'
- 'Artinskia transitoria belongs to Artinskia' according to Haniel 1915
- 'Artinskia transitoria is recombined as Akmilleria transitoria'
- 'Artinskia whortani is recombined as Akmilleria whortani'
- 'Artioceras belongs to Artioceratinae'
- 'Artioceratinae belongs to Medlicottiidae'
- 'Artioceratoides belongs to Artioceratinae'
- 'Artioceratoides pristinum belongs to Artioceratoides'
- 'Artioceratoides victori belongs to Artioceratoides'
- 'Asianites ajdaralensis is recombined as Metalegoceras ajdaralense'
- 'Asianites sogurensis is recombined as Metalegoceras sogurense'
- 'Atsabites belongs to Atsabitidae'
- 'Atsabites weberi belongs to Atsabites' according to Haniel 1915
- 'Atsabites weberi belongs to Atsabites'
- 'Atsabites williamsi is recombined as Anatsabites williamsi'
- 'Atsabitidae belongs to Neoicocerataceae'
- 'Auguritina belongs to Anarcestida'
- 'Aulacaganides belongs to Shouchangoceratinae'
- 'Aulacaganides hunanicus belongs to Aulacaganides'
- 'Aulacogastrioceras belongs to Aulacogastrioceratidae'
- 'Aulacogastrioceras spinosum belongs to Aulacogastrioceras'
- 'Aulacogastrioceratidae belongs to Neoicocerataceae'
- 'Avushoceras belongs to Araxoceratidae'
- 'Avushoceras jakowlewi belongs to Avushoceras'
- 'Bamyaniceras belongs to Propinacoceratinae'
- 'Bamyaniceras bouyxi belongs to Bamyaniceras' according to Termier and Termier 1970
- 'Bamyaniceras bouyxi belongs to Bamyaniceras'
- 'Bamyaniceras kubergandense belongs to Bamyaniceras' according to Toumanskaya 1935
- 'Bamyaniceras kubergandense belongs to Bamyaniceras'
- 'Bamyaniceras magnum belongs to Bamyaniceras'
- 'Bamyaniceras multilobatum belongs to Bamyaniceras'
- 'Bamyaniceras nandanense belongs to Bamyaniceras'
- 'Bamyaniceras obliquinodosum belongs to Bamyaniceras'
- 'Bamyaniceras parasimile belongs to Bamyaniceras' according to Zhou 1988
- 'Bamyaniceras parasimile belongs to Bamyaniceras'
- 'Bamyaniceras polae belongs to Bamyaniceras' according to Toumanskaya 1949
- 'Bamyaniceras polae belongs to Bamyaniceras'
- 'Bamyaniceras simplex belongs to Bamyaniceras'
- 'Bamyaniceras spatiosum belongs to Bamyaniceras'
- 'Bamyaniceras tersum belongs to Bamyaniceras'
- 'Baraioceras belongs to Paragastrioceratidae'
- 'Baraioceras stepanovi belongs to Baraioceras'
- 'Basleoceras is a subjective synonym of Epadrianites'
- 'Basleoceras kotljarae is recombined as Epadrianites kotljarae'
- 'Boesites belongs to Daraelitidae'
- 'Boesites aktubensis belongs to Boesites'
- 'Boesites eurinus belongs to Boesites'
- 'Boesites intercalaris belongs to Boesites'
- 'Boesites serotinus belongs to Boesites'
- 'Brancoceras pygmaeum is recombined as Sosioceras pygmaeum'
- 'Bransonoceras belongs to Pericycloceratinae'
- 'Bransonoceras bakeri belongs to Bransonoceras'
- 'Bulunites belongs to Paragastrioceratidae'
- 'Bulunites juferevi belongs to Bulunites'
- 'Bulunites mezhvilki belongs to Bulunites'
- 'Cardiella belongs to Marathonitinae'
- 'Cardiella amygdala belongs to Cardiella'
- 'Cardiella gracia belongs to Cardiella'
- 'Cardiella martodjojoi belongs to Cardiella'
- 'Cardiella multicostata belongs to Cardiella'
- 'Cardiella parva belongs to Cardiella'
- 'Cardiella ruzhencevi belongs to Cardiella'
- 'Cardiella shyndensis belongs to Cardiella'
- 'Cardiella vetusta belongs to Cardiella'
- 'Ceratites carbonarius is recombined as Xenodiscus carbonarius'
- 'Ceratites djoulfensis is recombined as Pseudotoceras djoulfense'
- 'Ceratites pessoides is recombined as Prototoceras pessoides'
- 'Ceratites trochoides is recombined as Araxoceras trochoides'
- 'Ceratites tropitus is recombined as Prototoceras tropitum'
- 'Ceratitida belongs to Ammonoidea'
- 'Changhsingoceras belongs to Cyclolobidae'
- 'Changhsingoceras meishanense belongs to Changhsingoceras'
- 'Changhsingoceras sichuanense belongs to Changhsingoceras'
- 'Changhsingoceras tenuicostatum belongs to Changhsingoceras'
- 'Chaotianoceras is a subjective synonym of Pseudotirolites'
- 'Chaotianoceras densistriatum is recombined as Pseudotirolites densistriatus'
- 'Chaotianoceras maoertangense is recombined as Pseudotirolites maoertangensis'
- 'Chaotianoceras minutum is recombined as Pseudotirolites minutus'
- 'Chaotianoceras modestum is recombined as Pseudotirolites modestus'
- 'Chaotianoceras nodosum is recombined as Pseudotirolites nodosus'
- 'Chaotianoceras obliquum is recombined as Pseudotirolites obliquus'
- 'Chekiangoceras belongs to Pseudogastrioceratidae'
- 'Cibolites belongs to Paraceltitidae'
- 'Cibolites africanus belongs to Cibolites'
- 'Cibolites dongwuliensis belongs to Cibolites'
- 'Cibolites parvus belongs to Cibolites' according to Zhou 1987
- 'Cibolites parvus belongs to Cibolites'
- 'Cibolites uddeni belongs to Cibolites'
- 'Clymeniida belongs to Ammonoidea'
- 'Clymeniina belongs to Clymeniida'
- 'Crimites belongs to Emilitinae'
- 'Crimites doliaris belongs to Crimites'
- 'Crimites elkoensis [misspelled as Crimites elcoensis] belongs to Crimites'
- 'Crimites gemmellaroi belongs to Crimites'
- 'Crimites glomulus belongs to Crimites'
- 'Crimites hanieli belongs to Crimites'
- 'Crimites murgabensis belongs to Crimites'
- 'Crimites pamiricus belongs to Crimites'
- 'Crimites shyndensis belongs to Crimites'
- 'Crimites singularis belongs to Crimites'
- 'Crimites smithi belongs to Crimites'
- 'Crimites spathi belongs to Crimites'
- 'Crimites subkrotowi belongs to Crimites'
- 'Cyclolobaceae belongs to Cyclolobina'
- 'Cyclolobidae belongs to Cyclolobaceae'
- 'Cyclolobina belongs to Goniatitida'
- 'Cyclolobus belongs to Cyclolobidae'
- 'Cyclolobus (Krafftoceras) haydeni is a subjective synonym of Cyclolobus walkeri'
- 'Cyclolobus (Krafftoceras) kraffti is a subjective synonym of Cyclolobus walkeri'
- 'Cyclolobus astrei is a subjective synonym of Cyclolobus walkeri'
- 'Cyclolobus kiselevae belongs to Cyclolobus'
- 'Cyclolobus subcumminsi is recombined as Paraperrinites subcumminsi'
- 'Cyclolobus teicherti belongs to Cyclolobus'
- 'Cyclolobus walkeri belongs to Cyclolobus'
- 'Daixites belongs to Uddenitinae'
- 'Daixites antipovi belongs to Daixites'
- 'Daixites attenuatus belongs to Daixites'
- 'Daixites meglitzkyi belongs to Daixites'
- 'Daraelites belongs to Daraelitidae'
- 'Daraelites elegans belongs to Daraelites'
- 'Daraelites kingi is recombined as Boesites kingi'
- 'Daraelites leonardensis belongs to Daraelites'
- 'Daraelites meeki belongs to Daraelites'
- 'Daraelites pamiricus belongs to Daraelites'
- 'Daraelites submeeki belongs to Daraelites' according to Haniel 1915
- 'Daraelites texanus is recombined as Boesites texanus'
- 'Daraelites vozginensis belongs to Daraelites'
- 'Daraelitidae belongs to Prolecanitacea'
- 'Darvasiceras belongs to Darvasiceratidae'
- 'Darvasiceras mirum belongs to Darvasiceras'
- 'Darvasiceratidae belongs to Medlicottiaceae'
- 'Daubichites belongs to Pseudogastrioceratidae'
- 'Daubichites butakovensis belongs to Daubichites'
- 'Daubichites orientalis belongs to Daubichites'
- 'Daubichites sirenwenduerensis belongs to Daubichites' according to Liang 1976
- 'Daubichites sirenwenduerensis belongs to Daubichites'
- 'Daubichites transitus belongs to Daubichites' according to Chu 1976
- 'Daubichites transitus belongs to Daubichites'
- 'Demarezites belongs to Cyclolobidae'
- 'Demarezites anfuensis is recombined as Hyattoceras anfuense'
- 'Demarezites compressus is recombined as Hyattoceras compressus'
- 'Demarezites furnishi belongs to Demarezites'
- 'Difuntites belongs to Propinacoceratinae'
- 'Discitoceras bowdeni is recombined as Paraceltites bowdeni'
- 'Discotoceras is a subjective synonym of Prototoceras'
- 'Doryceras belongs to Pamiritellinae'
- 'Doryceras fimbriatum belongs to Doryceras'
- 'Doryceras stouckenbergi belongs to Doryceras'
- 'Doulingoceras belongs to Paraceltitidae'
- 'Doulingoceras costituberosum belongs to Doulingoceras' according to Zhou 1985
- 'Doulingoceras costituberosum belongs to Doulingoceras'
- 'Doulingoceras nodosum belongs to Doulingoceras'
- 'Dushanoceras is a subjective synonym of Rotodiscoceras'
- 'Dushanoceras rotalarium is recombined as Rotodiscoceras rotalarium'
- 'Dzhulfites belongs to Dzhulfitidae'
- 'Dzhulfites nodosus belongs to Dzhulfites'
- 'Dzhulfites spinosus belongs to Dzhulfites'
- 'Dzhulfitidae belongs to Xenodiscaceae'
- 'Dzhulfoceras belongs to Araxoceratidae'
- 'Dzhulfoceras furnishi belongs to Dzhulfoceras'
- 'Dzhulfoceras inflatum belongs to Dzhulfoceras' according to Ruzhencev 1963
- 'Dzhulfoceras inflatum belongs to Dzhulfoceras'
- 'Dzhulfoceras paulum belongs to Dzhulfoceras' according to Ruzhencev 1962
- 'Dzhulfoceras paulum belongs to Dzhulfoceras'
- 'Elephantoceras belongs to Shouchangoceratinae'
- 'Elephantoceras nodosum belongs to Elephantoceras'
- 'Elephantoceras spinonodosum belongs to Elephantoceras'
- 'Emilites belongs to Emilitinae'
- 'Emilites prosperus belongs to Emilites'
- 'Emilitinae belongs to Adrianitidae'
- 'Eoaraxoceras belongs to Araxoceratidae'
- 'Eoaraxoceras ruzhencevi belongs to Eoaraxoceras'
- 'Eoasianites belongs to Neoicoceratidae'
- 'Eoasianites grandis belongs to Eoasianites'
- 'Eoasianites hartmannae belongs to Eoasianites' according to Ruzhencev 1938
- 'Eoasianites hartmannae belongs to Eoasianites'
- 'Eoasianites ruzencevi is recombined as Glaphyrites ruzencevi'
- 'Eoasianites stenus belongs to Eoasianites'
- 'Eoasianites subhanieli belongs to Eoasianites'
- 'Eoasianites trapezoidalis belongs to Eoasianites'
- 'Eoasianites vodorezovi belongs to Eoasianites'
- 'Eohyattoceras belongs to Marathonitinae'
- 'Eohyattoceras gerthi belongs to Eohyattoceras'
- 'Eohyattoceras leei is recombined as Leeites leei'
- 'Eolegoceras belongs to Pericycloceratinae'
- 'Eolegoceras murgabense belongs to Eolegoceras'
- 'Eothalassoceras belongs to Thalassoceratinae'
- 'Eothinites belongs to Eothinitinae'
- 'Eothinites aktastensis belongs to Eothinites'
- 'Eothinites aktubensis belongs to Eothinites' according to Ruzhencev 1933
- 'Eothinites aktubensis belongs to Eothinites'
- 'Eothinites cancellatus belongs to Eothinites'
- 'Eothinites convexus belongs to Eothinites'
- 'Eothinites evolutus belongs to Eothinites'
- 'Eothinites hessensis belongs to Eothinites'
- 'Eothinites kargalensis belongs to Eothinites'
- 'Eothinites pseudomeneghinii belongs to Eothinites' according to Haniel 1915
- 'Eothinites pseudomeneghinii belongs to Eothinites'
- 'Eothinites solitus belongs to Eothinites'
- 'Eothinites stenomphalus belongs to Eothinites'
- 'Eothinites usvensis belongs to Eothinites' according to Bogoslovskaya 1962
- 'Eothinites usvensis belongs to Eothinites'
- 'Eothinitidae was reranked as the subfamily Eothinitinae and belongs to Metalegoceratidae'
- 'Epadrianites belongs to Adrianitinae'
- 'Epadrianites stenosellatus belongs to Epadrianites'
- 'Epiglyphioceras belongs to Eothinitinae'
- 'Epijuresanites belongs to Spirolegoceratidae'
- 'Epijuresanites kolymaense belongs to Epijuresanites'
- 'Epijuresanites musalitini belongs to Epijuresanites'
- 'Epijuresanites pilnikovensis belongs to Epijuresanites'
- 'Epijuresanites vaigachensis belongs to Epijuresanites'
- 'Episageceras belongs to Episageceratidae'
- 'Episageceras boulei belongs to Episageceras'
- 'Episageceras nodosum belongs to Episageceras' according to Wanner 1931
- 'Episageceras nodosum is recombined as Nodosageceras nodosum'
- 'Episageceras noetlingi belongs to Episageceras'
- 'Episageceratidae belongs to Medlicottiaceae'
- 'Epitauroceras belongs to Popanoceratidae'
- 'Epitauroceras soewarnoi belongs to Epitauroceras'
- 'Epithalassoceras belongs to Thalassoceratinae'
- 'Epithalassoceras milleri belongs to Epithalassoceras' according to Beinert 1971
- 'Epithalassoceras milleri belongs to Epithalassoceras'
- 'Epithalassoceras ruzencevi belongs to Epithalassoceras'
- 'Erinoceras belongs to Shouchangoceratinae'
- 'Erinoceras ellipticum belongs to Erinoceras'
- 'Erinoceras gaoyaoense belongs to Erinoceras' according to Xu 1979
- 'Erinoceras gaoyaoense belongs to Erinoceras'
- 'Eumedlicottia belongs to Medlicottiinae'
- 'Eumedlicottia nikitini belongs to Eumedlicottia' according to Zakharov 1986
- 'Eumedlicottia nikitini belongs to Eumedlicottia'
- 'Fengchengoceras is a subjective synonym of Anderssonoceras'
- 'Fengchengoceras tricarinatum is recombined as Anderssonoceras tricarinatum'
- 'Gaetanoceras belongs to Agathiceratidae'
- 'Gaetanoceras lixianense belongs to Gaetanoceras'
- 'Gaetanoceras pavlovi belongs to Gaetanoceras'
- 'Gastrioceras abichianus is recombined as Pseudogastrioceras abichianum'
- 'Gastrioceras altudense is recombined as Altudoceras altudense'
- 'Gastrioceras australe is recombined as Metalegoceras australe'
- 'Gastrioceras beluense is recombined as Somoholites beluensis'
- 'Gastrioceras ellipsoidale is recombined as Paragastrioceras ellipsoidale'
- 'Gastrioceras fedorowi is recombined as Uraloceras fedorowi'
- 'Gastrioceras hanieli is recombined as Juresanites hanieli'
- 'Gastrioceras hirsutum is recombined as Altudoceras hirsutum'
- 'Gastrioceras jacksoni is recombined as Juresanites jacksoni'
- 'Gastrioceras karpinskii is recombined as Paragastrioceras karpinskii'
- 'Gastrioceras melanesianum is recombined as Juresanites melanesianum'
- 'Gastrioceras modestum is recombined as Glaphyrites modestus'
- 'Gastrioceras roadense is recombined as Roadoceras roadense'
- 'Gastrioceras roemeri is recombined as Altudoceras roemeri'
- 'Gastrioceras serratum is recombined as Altudoceras serratum'
- 'Gastrioceras simulator is recombined as Stenolobulites simulator'
- 'Gastrioceras somoholense is recombined as Juresanites somoholense'
- 'Gastrioceras sosiense is recombined as Altudoceras sosioense'
- 'Gastrioceras suessi is recombined as Uraloceras suessi'
- 'Gastrioceras waageni is recombined as Altudoceras waageni'
- 'Gastrioceras zitteli is recombined as Altudoceras zitteli'
- 'Gephuroceratina belongs to Anarcestida'
- 'Glaphyrites belongs to Glaphyritidae'
- 'Glaphyrites angustilobatus belongs to Glaphyrites'
- 'Glaphyrites postremus belongs to Glaphyrites'
- 'Glaphyrites rarus belongs to Glaphyrites'
- 'Glaphyritidae belongs to Somoholitaceae'
- 'Glassoceras belongs to Glassoceratinae'
- 'Glassoceratinae belongs to Neostacheoceratidae'
- 'Glyphioceras angulatum is recombined as Strigogoniatites angulatus'
- 'Glyphioceras gracile is recombined as Epiglyphioceras gracile'
- 'Glyphioceras meneghinii is recombined as Epiglyphioceras meneghinii'
- 'Gobioceras belongs to Spirolegoceratidae'
- 'Gobioceras elenae belongs to Gobioceras'
- 'Godthaabites is a subjective synonym of Cyclolobus'
- 'Godthaabites kullingi is recombined as Cyclolobus kullingi'
- 'Godthaabites ruzhencevi is recombined as Cyclolobus ruzhencevi'
- 'Goniatites artiensis is recombined as Artinskia artiensis'
- 'Goniatites baylorensis is recombined as Metalegoceras baylorense'
- 'Goniatites jossae is recombined as Paragastrioceras jossae'
- 'Goniatites orbignyanus is recombined as Medlicottia orbignyana'
- 'Goniatites postcarbonarius is recombined as Sakmarites postcarbonarius'
- 'Goniatites praepermicus is recombined as Neopronorites praepermicus'
- 'Goniatites primas is recombined as Eumedlicottia primas'
- 'Goniatites soboleskianus is recombined as Popanoceras sobolewskyanum'
- 'Goniatites uralicus is recombined as Agathiceras uralicum'
- 'Goniatitida belongs to Ammonoidea'
- 'Goniatitina belongs to Goniatitida'
- 'Gonioclymeniina belongs to Clymeniida'
- 'Gonioloboceras discoidale is recombined as Mescalites discoidalis'
- 'Goniolobocerataceae belongs to Goniatitina'
- 'Gonioloboceratidae belongs to Goniolobocerataceae'
- 'Guiyangoceras belongs to Kufengoceratidae'
- 'Guiyangoceras guiyangense belongs to Guiyangoceras'
- 'Guiyangoceras latiformum belongs to Guiyangoceras'
- 'Hanieloceras is a subjective synonym of Timorites'
- 'Hengshanites is a subjective synonym of Altudoceras'
- 'Hoffmanniinae was reranked as the family Hoffmanniidae and belongs to Adrianitaceae'
- 'Huananoceras is a subjective synonym of Tapashanites'
- 'Huananoceras involutum is recombined as Tapashanites involutus'
- 'Huananoceras perornatum is recombined as Tapashanites perornatus'
- 'Huananoceras pseudoperornatum is recombined as Tapashanites pseudoperornatus'
- 'Huananoceras qianjiangense is recombined as Tapashanites qianjiangensis'
- 'Hungarites raddei is recombined as Prototoceras raddei'
- 'Hyattoceras belongs to Hyattoceratidae'
- 'Hyattoceras (Abichia) abichi is recombined as Hyattoceras abichi'
- 'Hyattoceras geinitzi belongs to Hyattoceras'
- 'Hyattoceras guembeli belongs to Hyattoceras'
- 'Hyattoceras simple belongs to Hyattoceras' according to Sheng 1988
- 'Hyattoceras simple belongs to Hyattoceras'
- 'Hyattoceras subgeinitzi belongs to Hyattoceras'
- 'Hyattoceras turgidum belongs to Hyattoceras'
- 'Hyattoceras waageni is recombined as Metaperrinites waageni'
- 'Hyattoceratinae was reranked as the family Hyattoceratidae and belongs to Cyclolobaceae'
- 'Imitoceras multiseptata is recombined as Neoaganides multiseptatus'
- 'Iranites belongs to Xenodiscidae'
- 'Iranites ishii belongs to Iranites' according to Bando 1979
- 'Iranites ishii belongs to Iranites'
- 'Iranites transcaucasicus belongs to Iranites'
- 'Istycoceras belongs to Emilitinae'
- 'Istycoceras bodylevskyi belongs to Istycoceras'
- 'Jilingites belongs to Vidrioceratidae'
- 'Jilingites bidentus belongs to Jilingites'
- 'Jilingites kesennumensis belongs to Jilingites'
- 'Jinjiangoceras is a subjective synonym of Prototoceras'
- 'Jinjiangoceras jiangxiense is recombined as Prototoceras jiangxiense'
- 'Jinjiangoceras shatangense is recombined as Prototoceras shatangense'
- 'Jinjiangoceras striatum is recombined as Prototoceras striatum'
- 'Jinjiangoceras ventroplanum is recombined as Prototoceras ventroplanum'
- 'Julfotoceras belongs to Araxoceratidae'
- 'Julfotoceras abadehense belongs to Julfotoceras' according to Bando 1979
- 'Julfotoceras abadehense belongs to Julfotoceras'
- 'Julfotoceras tarazi belongs to Julfotoceras'
- 'Juresanites belongs to Metalegoceratinae'
- 'Juresanites intermedius belongs to Juresanites'
- 'Juresanites kazakhorum belongs to Juresanites' according to Ruzhencev 1952
- 'Juresanites kazakhorum belongs to Juresanites'
- 'Juresanites maximovae belongs to Juresanites'
- 'Juresanites originalis belongs to Juresanites'
- 'Juresanites primitivus belongs to Juresanites' according to Maximova 1935
- 'Juresanites primitivus belongs to Juresanites'
- 'Kargalites belongs to Kargalitinae'
- 'Kargalites (Subkargalites) was reranked as Subkargalites and belongs to Kargalitinae'
- 'Kargalites latus belongs to Kargalites'
- 'Kargalites liuzhaiensis is recombined as Subkargalites liuzhaiensis'
- 'Kargalites nandanensis belongs to Kargalites'
- 'Kargalites simplex belongs to Kargalites'
- 'Kargalitinae belongs to Marathonitidae'
- 'Kashmirites stoyanowi is recombined as Abichites stoyanowi'
- 'Kiangsites is a subjective synonym of Araxoceras'
- 'Kiangsiceras rotule is recombined as Araxoceras rotule'
- 'Kingoceras belongs to Araxoceratidae'
- 'Kingoceras achurense belongs to Kingoceras'
- 'Kingoceras kingi belongs to Kingoceras'
- 'Konglingites is a subjective synonym of Araxoceras'
- 'Konglingites gaoanensis is recombined as Araxoceras gaoanense'
- 'Konglingites inflatus is recombined as Araxoceras inflatum'
- 'Konglingites latisellatus is recombined as Araxoceras latisellatum'
- 'Konglingites striatus is recombined as Araxoceras striatum'
- 'Konglingites tumidus is recombined as Araxoceras tumidum'
- 'Krafftoceras is a subjective synonym of Cyclolobus'
- 'Kufengoceras is a subjective synonym of Shengoceras'
- 'Kufengoceras subglobosum is recombined as Shengoceras subglobosum'
- 'Kufengoceratinae was reranked as the family Kufengoceratidae and belongs to Cyclolobaceae'
- 'Kunlunoceras is a subjective synonym of Miklukhoceras'
- 'Kunlunoceras kunlunense belongs to Kunlunoceras' according to Wang 1983
- 'Kunlunoceras kunlunense is recombined as Miklukhoceras kunlunense'
- 'Kurdiceras belongs to Cyclolobaceae'
- 'Laibinoceras belongs to Xenodiscidae'
- 'Laibinoceras compressum belongs to Laibinoceras' according to Yang 1987
- 'Laibinoceras compressum belongs to Laibinoceras'
- 'Lanceoloboceras belongs to Yinoceratinae'
- 'Lanceoloboceras hunanense belongs to Lanceoloboceras'
- 'Lanceoloboceras reticulatum belongs to Lanceoloboceras'
- 'Leeites belongs to Vidrioceratidae'
- 'Lenticoceltites belongs to Anderssonoceratidae'
- 'Lenticoceltites fengchengensis belongs to Lenticoceltites'
- 'Lenticoceltites involutus belongs to Lenticoceltites'
- 'Lenticoceltites okimurai belongs to Lenticoceltites' according to Bando 1979
- 'Lenticoceltites okimurai belongs to Lenticoceltites'
- 'Leptogyroceras is a subjective synonym of Pericarinoceras'
- 'Leptogyroceras dongshenlingense is recombined as Pericarinoceras dongshenlingense'
- 'Leptogyroceras latiumbilicatum is recombined as Pericarinoceras latiumbilicatum'
- 'Lianyuanoceras belongs to Shouchangoceratinae'
- 'Lianyuanoceras shenjiachongense belongs to Lianyuanoceras'
- 'Lingzhouceras belongs to Pamiritellinae'
- 'Lingzhouceras galeatum belongs to Lingzhouceras' according to Sheng 1988
- 'Lingzhouceras galeatum belongs to Lingzhouceras'
- 'Lingzhouceras ornatum belongs to Lingzhouceras' according to Sheng 1988
- 'Lingzhouceras ornatum belongs to Lingzhouceras'
- 'Liuchengoceras is a subjective synonym of Pseudotirolites'
- 'Liuchengoceras crassicostatum is recombined as Pseudotirolites crassicostatus'
- 'Liuchengoceras evolutum is recombined as Pseudotirolites evolutus'
- 'Liuzhouceras belongs to Kufengoceratidae'
- 'Liuzhouceras paradoxum belongs to Liuzhouceras' according to Zhou 1985
- 'Liuzhouceras paradoxum belongs to Liuzhouceras'
- 'Longmenshanoceras is a subjective synonym of Tapashanites'
- 'Longmenshanoceras plicatum is recombined as Tapashanites plicatus'
- 'Mapirites belongs to Paraperrinitinae'
- 'Mapirites latumbilicatus belongs to Mapirites'
- 'Marathonitaceae belongs to Cyclolobina'
- 'Marathonites (Almites) pamiricus is recombined as Cardiella pamirica'
- 'Marathonites (Almites) pressulus is recombined as Almites pressulus'
- 'Marathonites basarensis is recombined as Kargalites basarensis'
- 'Marathonites busterensis is recombined as Cardiella busterensis'
- 'Marathonites dieneri is recombined as Martoceras dieneri'
- 'Marathonites electraensis is recombined as Almites electraensis'
- 'Marathonites gracilis is recombined as Almites gracilis'
- 'Marathonites invariabilis is recombined as Almites invariabilis'
- 'Marathonites juresanensis is recombined as Prostacheoceras juresanense'
- 'Marathonites sellardsi is recombined as Almites sellardsi'
- 'Marathonites typica is recombined as Kargalites typicus'
- 'Marathonitidae belongs to Marathonitaceae'
- 'Marathonitinae belongs to Marathonitidae'
- 'Martoceras belongs to Neostacheoceratinae'
- 'Martoceras modestum belongs to Martoceras'
- 'Martoceras oshense is recombined as Prostacheoceras oshense'
- 'Martoceras saundersi is recombined as Prostacheoceras saundersi'
- 'Medlicottia belongs to Medlicottiinae'
- 'Medlicottia arroyoensis belongs to Medlicottia'
- 'Medlicottia artiensis timorensis belongs to Medlicottia artiensis' according to Haniel 1915
- 'Medlicottia artiensis timorensis is recombined as Artinskia timorensis'
- 'Medlicottia beishanensis is recombined as Neogeoceras beishanense'
- 'Medlicottia bifrons is recombined as Eumedlicottia bifrons'
- 'Medlicottia burckhardti is recombined as Eumedlicottia burckhardti'
- 'Medlicottia busterensis belongs to Medlicottia' according to Toumanskaya 1949
- 'Medlicottia busterensis belongs to Medlicottia'
- 'Medlicottia chozaensis belongs to Medlicottia'
- 'Medlicottia copei belongs to Medlicottia'
- 'Medlicottia costellifera belongs to Medlicottia'
- 'Medlicottia gansuensis belongs to Medlicottia'
- 'Medlicottia girtyi is recombined as Neogeoceras girtyi'
- 'Medlicottia intermedia belongs to Medlicottia'
- 'Medlicottia jakovlevi belongs to Medlicottia' according to Toumanskaya 1949
- 'Medlicottia jakovlevi belongs to Medlicottia'
- 'Medlicottia kingorum belongs to Medlicottia'
- 'Medlicottia kitakamiensis is recombined as Neogeoceras kitakamiensis'
- 'Medlicottia malmqvisti is recombined as Neogeoceras malmqvisti'
- 'Medlicottia marcoui is recombined as Neogeoceras marcoui'
- 'Medlicottia milleri belongs to Medlicottia'
- 'Medlicottia orbignyana basarensis is recombined as Medlicottia basarensis'
- 'Medlicottia orientalis belongs to Medlicottia'
- 'Medlicottia postorbignyana belongs to Medlicottia'
- 'Medlicottia schopeni is recombined as Sicanites schopeni'
- 'Medlicottia semota belongs to Medlicottia' according to Ruzhencev 1951
- 'Medlicottia semota belongs to Medlicottia'
- 'Medlicottia smithi is recombined as Neogeoceras smithi'
- 'Medlicottia subprimas belongs to Medlicottia' according to Haniel 1915
- 'Medlicottia subprimas is recombined as Eumedlicottia subprimas'
- 'Medlicottia tenuis belongs to Medlicottia'
- 'Medlicottia trautscholdi is recombined as Neogeoceras trautscholdi'
- 'Medlicottia verneuili is recombined as Eumedlicottia verneuili'
- 'Medlicottia vetusta belongs to Medlicottia' according to Ruzhencev 1949
- 'Medlicottia vetusta belongs to Medlicottia'
- 'Medlicottia whitneyi is recombined as Eumedlicottia whitneyi'
- 'Medlicottiaceae belongs to Medlicottiina'
- 'Medlicottiidae belongs to Medlicottiaceae'
- 'Medlicottiina belongs to Prolecanitida'
- 'Medlicottiinae belongs to Medlicottiidae'
- 'Meitianoceras belongs to Paraceltitidae'
- 'Meitianoceras meitianense belongs to Meitianoceras'
- 'Mescalites belongs to Gonioloboceratidae'
- 'Metacrimites kropatchevae belongs to Metacrimites' according to Zahkarov 1986
- 'Metacrimites kropatchevae belongs to Metacrimites'
- 'Metacrimites obesus belongs to Metacrimites' according to Sheng 1984
- 'Metacrimites obesus belongs to Metacrimites'
- 'Metagastrioceras belongs to Pseudogastrioceratidae'
- 'Metagastrioceras fengchengense belongs to Metagastrioceras'
- 'Metalegoceras belongs to Metalegoceratinae'
- 'Metalegoceras aricki belongs to Metalegoceras'
- 'Metalegoceras bosterense belongs to Metalegoceras'
- 'Metalegoceras campbelli is recombined as Juresanites campbelli'
- 'Metalegoceras clarkei is recombined as Parametalegoceras clarkei'
- 'Metalegoceras colemanense is recombined as Juresanites colemanensis'
- 'Metalegoceras crenatum belongs to Metalegoceras'
- 'Metalegoceras distale belongs to Metalegoceras' according to Ruzhencev 1938
- 'Metalegoceras distale belongs to Metalegoceras'
- 'Metalegoceras gerassimovi belongs to Metalegoceras' according to Ruzhencev 1951
- 'Metalegoceras gerassimovi belongs to Metalegoceras'
- 'Metalegoceras kayi belongs to Metalegoceras'
- 'Metalegoceras klimovi belongs to Metalegoceras'
- 'Metalegoceras liratum is recombined as Pseudometalegoceras liratum'
- 'Metalegoceras noinskyi belongs to Metalegoceras' according to Ruzhencev 1951
- 'Metalegoceras noinskyi belongs to Metalegoceras'
- 'Metalegoceras pamiricum belongs to Metalegoceras'
- 'Metalegoceras platyventrum is recombined as Pseudometalegoceras platyventrum'
- 'Metalegoceras rotundatum belongs to Metalegoceras'
- 'Metalegoceras schucherti belongs to Metalegoceras'
- 'Metalegoceras shangraoense is recombined as Pseudometalegoceras shangraoense'
- 'Metalegoceras shyndense belongs to Metalegoceras'
- 'Metalegoceras spirale is recombined as Pseudometalegoceras spirale'
- 'Metalegoceras striatum belongs to Metalegoceras'
- 'Metalegoceras toumanskayae belongs to Metalegoceras'
- 'Metalegoceras wanneri belongs to Metalegoceras' according to Smith 1927
- 'Metalegoceras wanneri belongs to Metalegoceras'
- 'Metalegoceratidae belongs to Neoicocerataceae'
- 'Metalegoceratinae belongs to Metalegoceratidae'
- 'Metaperrinites belongs to Paraperrinitinae'
- 'Metaperrinites toumanskayae belongs to Metaperrinites'
- 'Metapronorites belongs to Pronoritidae'
- 'Metapronorites angustus belongs to Metapronorites'
- 'Metapronorites certus belongs to Metapronorites'
- 'Metapronorites vladimiri belongs to Metapronorites' according to Andrianov 1985
- 'Metapronorites vladimiri belongs to Metapronorites'
- 'Mexicoceras belongs to Cyclolobidae'
- 'Mexicoceras globosum belongs to Mexicoceras'
- 'Miklukhoceras belongs to Miklukhoceratinae'
- 'Miklukhoceras artumbilicatum belongs to Miklukhoceras'
- 'Miklukhoceras pamiricum belongs to Miklukhoceras'
- 'Miklukhoceras praevium belongs to Miklukhoceras'
- 'Miklukhoceras pressulum belongs to Miklukhoceras'
- 'Miklukhoceratinae belongs to Medlicottiidae'
- 'Mingyuexiaceras is a subjective synonym of Tapashanites'
- 'Mingyuexiaceras radiatum is recombined as Tapashanites radiatus'
- 'Mongoloceras belongs to Mongoloceratidae'
- 'Mongoloceras globiense belongs to Mongoloceras' according to Ruzhencev 1960
- 'Mongoloceras globiense belongs to Mongoloceras'
- 'Mongoloceras omanicum belongs to Mongoloceras'
- 'Mongoloceratidae belongs to Popanocerataceae'
- 'Murgabites dronovi is recombined as Gaetanoceras dronovi'
- 'Neoaganides belongs to Shouchangoceratinae'
- 'Neoaganides dictyon belongs to Neoaganides' according to Zhou 1987
- 'Neoaganides dictyon belongs to Neoaganides'
- 'Neoaganides grahamensis belongs to Neoaganides'
- 'Neoaganides meitianensis belongs to Neoaganides'
- 'Neoaganides nesenensis belongs to Neoaganides'
- 'Neoaganides paulus belongs to Neoaganides'
- 'Neoaganides rectilobatus belongs to Neoaganides'
- 'Neoaganides tabantalensis belongs to Neoaganides'
- 'Neoaganides xiaoheensis belongs to Neoaganides'
- 'Neocrimites belongs to Adrianitinae'
- 'Neocrimites (Metacrimites) was reranked as Metacrimites and belongs to Texoceratinae'
- 'Neocrimites (Sosiocrimites) was reranked as Sosiocrimites and belongs to Adrianitinae'
- 'Subcrimites is a subjective synonym of Sosiocrimites'
- 'Neocrimites (Subcrimites) compressus is recombined as Sosiocrimites compressus'
- 'Neocrimites dutkevitchi [misspelled as Neocrimites dutkevichi] belongs to Neocrimites'
- 'Neocrimites guangxiensis belongs to Neocrimites'
- 'Neocrimites jintaensis is recombined as Metacrimites jintaensis'
- 'Neocrimites pavlovi belongs to Neocrimites'
- 'Neogeoceras belongs to Medlicottiinae'
- 'Neogeoceras canavari belongs to Neogeoceras' according to Greco 1935
- 'Neogeoceras canavari belongs to Neogeoceras'
- 'Neogeoceras glabrum belongs to Neogeoceras'
- 'Neogeoceras macnairi belongs to Neogeoceras'
- 'Neogeoceras tenum belongs to Neogeoceras'
- 'Neogeoceras thaumastum belongs to Neogeoceras'
- 'Neoicocerataceae belongs to Goniatitina'
- 'Neoicoceratidae belongs to Neoicocerataceae'
- 'Neopronorites belongs to Pronoritidae'
- 'Neopronorites asaphus belongs to Neopronorites' according to Ruzhencev 1938
- 'Neopronorites asaphus is recombined as Sakmarites asaphus'
- 'Neopronorites asianus belongs to Neopronorites'
- 'Neopronorites bakeri belongs to Neopronorites'
- 'Neopronorites darvasicus belongs to Neopronorites'
- 'Neopronorites magnus belongs to Neopronorites' according to Maximova 1938
- 'Neopronorites magnus belongs to Neopronorites'
- 'Neopronorites milleri belongs to Neopronorites'
- 'Neopronorites rotundus belongs to Neopronorites' according to Maximova 1938
- 'Neopronorites rotundus belongs to Neopronorites'
- 'Neopronorites schucherti belongs to Neopronorites' according to Ruzhencev 1938
- 'Neopronorites schucherti belongs to Neopronorites'
- 'Neopronorites shinini belongs to Neopronorites'
- 'Neopronorites shinini belongs to Neopronorites' according to Ruzhencev 1938
- 'Neoshumardites belongs to Somoholitidae'
- 'Neoshumardites angustilobus belongs to Neoshumardites'
- 'Neoshumardites hyperboreus belongs to Neoshumardites' according to Ruzhencev 1961
- 'Neoshumardites hyperboreus belongs to Neoshumardites'
- 'Neoshumardites triceps belongs to Neoshumardites'
- 'Neostacheoceras belongs to Neostacheoceratinae'
- 'Neostacheoceras hanieli belongs to Neostacheoceras'
- 'Neostacheoceratidae belongs to Cyclolobaceae'
- 'Neostacheoceratinae belongs to Neostacheoceratidae'
- 'Neouddenites belongs to Uddenitinae'
- 'Neouddenites andrianovi belongs to Neouddenites'
- 'Neouddenites caurus belongs to Neouddenites'
- 'Neouddenites orientalis belongs to Neouddenites'
- 'Nepirrites belongs to Paraperrinitinae'
- 'Nepirrites medius belongs to Nepirrites'
- 'Nevadoceras belongs to Emilitinae'
- 'Nevadoceras steelei belongs to Nevadoceras'
- 'Newellites belongs to Cyclolobidae'
- 'Nielsenoceras belongs to Paraceltitidae'
- 'Nodosageceras belongs to Episageceratidae'
- 'Otoceras fedoroffi is recombined as Prototoceras fedoroffi'
- 'Otoceras intermedium belongs to Otoceras' according to Abich 1878
- 'Otoceras intermedium is recombined as Prototoceras intermedium'
- 'Otocerataceae belongs to Otoceratina'
- 'Otoceratina belongs to Ceratitida'
- 'Pachydiscoceras is a subjective synonym of Pseudotirolites'
- 'Pachydiscoceras ellipticum is recombined as Pseudotirolites ellipticus'
- 'Pachydiscoceras flexoplicatum is recombined as Pseudotirolites flexoplicatus'
- 'Pachydiscoceras obesum is recombined as Pseudotirolites obesus'
- 'Pachyrotoceras is a subjective synonym of Pericarinoceras'
- 'Pachyrotoceras fengchengense is recombined as Pericarinoceras fengchengense'
- 'Pachyrotoceras laevigatum is recombined as Pericarinoceras laevigatum'
- 'Palaeolecanites is a subjective synonym of Xenodiscus'
- 'Palermites belongs to Pamiritellinae'
- 'Palermites minor belongs to Palermites' according to Toumanskaya 1931
- 'Palermites minor belongs to Palermites'
- 'Palermites reticulatus belongs to Palermites'
- 'Pamirioceras belongs to Pamiritellinae'
- 'Pamirioceras markovskii belongs to Pamirioceras'
- 'Pamiritella belongs to Pamiritellinae'
- 'Pamiritellinae belongs to Adrianitidae'
- 'Pamirites belongs to Vidrioceratidae'
- 'Pamirites clinei belongs to Pamirites'
- 'Pamiropopanoceras belongs to Popanoceratidae'
- 'Pamiropopanoceras corpulentum belongs to Pamiropopanoceras'
- 'Pamiropopanoceras meridionale belongs to Pamiropopanoceras'
- 'Paraceltites belongs to Paraceltitidae'
- 'Paraceltites costatus belongs to Paraceltites' according to Hayasaka 1947
- 'Paraceltites costatus belongs to Paraceltites'
- 'Paraceltites elegans belongs to Paraceltites'
- 'Paraceltites hoeferi belongs to Paraceltites'
- 'Paraceltites hunanensis belongs to Paraceltites'
- 'Paraceltites multicostatus belongs to Paraceltites'
- 'Paraceltites multiliratus is recombined as Anatsabites multiliratus'
- 'Paraceltites ornatus belongs to Paraceltites'
- 'Paraceltites platyventrus belongs to Paraceltites' according to Liang 1976
- 'Paraceltites platyventrus belongs to Paraceltites'
- 'Paraceltites rectangularis belongs to Paraceltites'
- 'Paraceltites sellardsi belongs to Paraceltites'
- 'Paraceltites xizangensis belongs to Paraceltites' according to Liang 1976
- 'Paraceltites xizangensis belongs to Paraceltites'
- 'Paraceltitidae belongs to Xenodiscaceae'
- 'Paraceltitina belongs to Ceratitida'
- 'Paracibolites is a subjective synonym of Paraceltites'
- 'Paragastrioceras belongs to Paragastrioceratidae'
- 'Paragastrioceras admiralense is recombined as Stenolobulites admiralensis'
- 'Paragastrioceras alimbeti belongs to Paragastrioceras'
- 'Paragastrioceras artolobatum belongs to Paragastrioceras'
- 'Paragastrioceras bactrianum belongs to Paragastrioceras'
- 'Paragastrioceras beedei is recombined as Roadoceras beedei'
- 'Paragastrioceras burtiensis is recombined as Uraloceras burtiense'
- 'Paragastrioceras caducum belongs to Paragastrioceras'
- 'Paragastrioceras carinatum is recombined as Chekiangoceras carinatum'
- 'Paragastrioceras complanata is recombined as Uraloceras complanatum'
- 'Paragastrioceras deciense is recombined as Glaphyrites deciensis'
- 'Paragastrioceras ilovaiskyi belongs to Paragastrioceras'
- 'Paragastrioceras involutum is recombined as Uraloceras involutum'
- 'Paragastrioceras kirghizorum belongs to Paragastrioceras'
- 'Paragastrioceras kojimense belongs to Paragastrioceras'
- 'Paragastrioceras kungurense is recombined as Baraioceras kungurense'
- 'Paragastrioceras modulatum belongs to Paragastrioceras'
- 'Paragastrioceras plicatum belongs to Paragastrioceras'
- 'Paragastrioceras rauserae belongs to Paragastrioceras'
- 'Paragastrioceras scitum belongs to Paragastrioceras'
- 'Paragastrioceras shouchangense is recombined as Daubichites shouchangense'
- 'Paragastrioceras simulatum belongs to Paragastrioceras' according to Bogoslovskaya 1997
- 'Paragastrioceras simulatum belongs to Paragastrioceras'
- 'Paragastrioceras sintasense belongs to Paragastrioceras' according to Ruzhencev 1938
- 'Paragastrioceras sintasense belongs to Paragastrioceras'
- 'Paragastrioceras sterlitamakense belongs to Paragastrioceras' according to Gerassimov 1937
- 'Paragastrioceras sterlitamakense is recombined as Svetlanoceras sterlitamakense'
- 'Paragastrioceras strigosum is recombined as Svetlanoceras strigosum'
- 'Paragastrioceras subjossae belongs to Paragastrioceras' according to Bogoslovskaya and Shkolin 1998
- 'Paragastrioceras subjossae belongs to Paragastrioceras'
- 'Paragastrioceras tchernowi belongs to Paragastrioceras'
- 'Paragastrioceras tectum belongs to Paragastrioceras'
- 'Paragastrioceras tokyense belongs to Paragastrioceras'
- 'Paragastrioceras ultuganense belongs to Paragastrioceras' according to Ruzhencev 1951
- 'Paragastrioceras ultuganense belongs to Paragastrioceras'
- 'Paragastrioceras varium belongs to Paragastrioceras' according to Bogoslovskaya and Shkolin 1998
- 'Paragastrioceras varium belongs to Paragastrioceras'
- 'Paragastrioceras verneuili belongs to Paragastrioceras'
- 'Paragastrioceras wandageense belongs to Paragastrioceras'
- 'Paragastrioceratidae belongs to Neoicocerataceae'
- 'Parakufengoceras belongs to Kufengoceratinae'
- 'Parakufengoceras primitivum belongs to Parakufengoceras'
- 'Paralecanites is a subjective synonym of Paraceltites'
- 'Paralecanites altudensis is recombined as Paraceltites altudensis'
- 'Paralegoceras evolutum is recombined as Metalegoceras evolutum'
- 'Paralegoceras gigas is recombined as Pseudoschistoceras gigas'
- 'Paralegoceras incertum is recombined as Emilites incertus'
- 'Paralegoceras sundaicum is recombined as Metalegoceras sundaicum'
- 'Paralegoceras tschernyschewi is recombined as Metalegoceras tschernyschewi'
- 'Paramedlicottia belongs to Medlicottiinae'
- 'Paramedlicottia sauksayensis belongs to Paramedlicottia'
- 'Parametalegoceras belongs to Metalegoceratinae'
- 'Parametalegoceras arcticum belongs to Parametalegoceras'
- 'Paramexicoceras belongs to Cyclolobidae'
- 'Paramexicoceras aldanense belongs to Paramexicoceras'
- 'Paramexicoceras aldanense belongs to Paramexicoceras' according to Popow 1970
- 'Paraperrinites belongs to Paraperrinitinae'
- 'Paraperrinites milleri is recombined as Metaperrinites milleri'
- 'Paraperrinites schucherti is recombined as Metaperrinites schucherti'
- 'Paraperrinitinae belongs to Perrinitidae'
- 'Parapronorites belongs to Pronoritidae'
- 'Parapronorites konincki belongs to Parapronorites'
- 'Parapronorites permicus is recombined as Neopronorites permicus'
- 'Parapronorites rectus belongs to Parapronorites'
- 'Parapronorites skvorzovi is recombined as Neopronorites skvorzovi'
- 'Parapronorites subitus belongs to Parapronorites'
- 'Parapronorites tenuis is recombined as Neopronorites tenuis'
- 'Parapronorites timorensis belongs to Parapronorites'
- 'Parasicanites belongs to Sicanitinae'
- 'Parasicanites apertus belongs to Parasicanites'
- 'Parasicanites meridionalis belongs to Parasicanites'
- 'Paratirolites belongs to Dzhulfitidae'
- 'Paratirolites compressus belongs to Paratirolites'
- 'Paratirolites dieneri belongs to Paratirolites'
- 'Paratirolites guizhouensis belongs to Paratirolites'
- 'Paratirolites kittli belongs to Paratirolites'
- 'Paratirolites mojsisovicsi is recombined as Abichites mojsisovicsi'
- 'Paratirolites trapezoidalis belongs to Paratirolites'
- 'Paratirolites vediensis belongs to Paratirolites'
- 'Paratongluceras belongs to Kufengoceratidae'
- 'Paratongluceras lixianense belongs to Paratongluceras'
- 'Paratongluceras subglobosum belongs to Paratongluceras'
- 'Penglaites belongs to Xenodiscidae'
- 'Penglaites ellipticus belongs to Penglaites' according to Yang 1987
- 'Penglaites ellipticus belongs to Penglaites'
- 'Penglaites laibinensis belongs to Penglaites'
- 'Pentagonoceras belongs to Pseudotirolitidae'
- 'Pentagonoceras attenuatum belongs to Pentagonoceras'
- 'Pentagonoceras chaotianense belongs to Pentagonoceras'
- 'Pentagonoceras costatum belongs to Pentagonoceras'
- 'Pentagonoceras guangyuanense belongs to Pentagonoceras'
- 'Pentagonoceras guizhouense belongs to Pentagonoceras'
- 'Pentagonoceras spinosum belongs to Pentagonoceras'
- 'Pericarinoceras belongs to Anderssonoceratidae'
- 'Pericarinoceras compressum belongs to Pericarinoceras'
- 'Pericarinoceras robustum belongs to Pericarinoceras'
- 'Pericycloceras belongs to Pericycloceratinae'
- 'Pericycloceras costatum belongs to Pericycloceras'
- 'Pericycloceratidae was reranked as the subfamily Pericycloceratinae and belongs to Metalegoceratidae'
- 'Periptychoceras is a subjective synonym of Anfuceras'
- 'Periptychoceras compressum is recombined as Anfuceras compressum'
- 'Peritrochia belongs to Vidrioceratidae'
- 'Peritrochia dunbari is recombined as Pseudovidrioceras dunbari'
- 'Peritrochia erebus belongs to Peritrochia'
- 'Peritrochia mullerriedi is recombined as Kargalites mullerriedi'
- 'Peritrochia novomexicana is recombined as Pseudovidrioceras novomexicanum'
- 'Peritrochia skinneri is recombined as Prostacheoceras skinneri'
- 'Pernodoceras is a subjective synonym of Pseudotirolites'
- 'Pernodoceras guangyuanense is recombined as Pseudotirolites guangyuanensis'
- 'Pernodoceras kwangsiense is recombined as Pseudotirolites kwangsiensis'
- 'Pernodoceras multinodosum is recombined as Pseudotirolites multinodosus'
- 'Pernodoceras robustum is recombined as Pseudotirolites robustus'
- 'Pernodoceras subtrapezoidale is recombined as Pseudotirolites subtrapezoidalis'
- 'Perrimetanites belongs to Paraperrinitinae'
- 'Perrimetanites afghanis belongs to Perrimetanites' according to Termier and Termier 1970
- 'Perrimetanites afghanis belongs to Perrimetanites'
- 'Perrimetanites praesimplicior belongs to Perrimetanites'
- 'Perrimetanites progressus belongs to Perrimetanites'
- 'Perrimetanites simplicior belongs to Perrimetanites'
- 'Perrinites belongs to Perrinitinae'
- 'Perrinites bakeri is recombined as Subperrinites bakeri'
- 'Perrinites boesei is recombined as Properrinites boesei'
- 'Perrinites brouweri is recombined as Paraperrinites brouweri'
- 'Perrinites tardus is recombined as Metaperrinites tardus'
- 'Perrinites vidriensis belongs to Perrinites'
- 'Perrinitidae belongs to Shumarditaceae'
- 'Perrinitinae belongs to Perrinitidae'
- 'Phisonites belongs to Xenodiscidae'
- 'Phisonites triangulus belongs to Phisonites'
- 'Phylloceras oldhami is recombined as Cyclolobus oldhami'
- 'Planodiscoceras is a subjective synonym of Pericarinoceras'
- 'Planodiscoceras gratiosum is recombined as Pericarinoceras gratiosum'
- 'Planodiscoceras involutum is recombined as Pericarinoceras involutum'
- 'Planodiscoceras longilobatum is recombined as Pericarinoceras longilobatum'
- 'Platydiscoceras kwangsiense is recombined as Rotodiscoceras kwangsiense'
- 'Pleuronodoceras belongs to Pseudotirolitidae'
- 'Graciloceratites is a subjective synonym of Pleuronodoceras'
- 'Pleuronodoceras (Graciloceratites) multinodosus is recombined as Pleuronodoceras multinodosum'
- 'Pleuronodoceras anshunense belongs to Pleuronodoceras'
- 'Pleuronodoceras attenuatum belongs to Pleuronodoceras'
- 'Pleuronodoceras carinatum belongs to Pleuronodoceras'
- 'Pleuronodoceras curvaplicatum belongs to Pleuronodoceras'
- 'Pleuronodoceras densiplicatum belongs to Pleuronodoceras'
- 'Pleuronodoceras dushanense belongs to Pleuronodoceras'
- 'Pleuronodoceras guangdeense belongs to Pleuronodoceras'
- 'Pleuronodoceras guiyangense belongs to Pleuronodoceras'
- 'Pleuronodoceras inflatum belongs to Pleuronodoceras'
- 'Pleuronodoceras liuchengense belongs to Pleuronodoceras'
- 'Pleuronodoceras matanense belongs to Pleuronodoceras'
- 'Pleuronodoceras mirificum belongs to Pleuronodoceras'
- 'Pleuronodoceras radiatum belongs to Pleuronodoceras'
- 'Pleuronodoceras robustum belongs to Pleuronodoceras'
- 'Pleuronodoceras robustum belongs to Pleuronodoceras' according to Yang 1987
- 'Pleuronodoceras tenuicostatum belongs to Pleuronodoceras'
- 'Pleuronodoceras tonglingense belongs to Pleuronodoceras'
- 'Plummerites is an objective synonym of Emilites'
- 'Popanoceras belongs to Popanoceratidae'
- 'Popanoceras annae belongs to Popanoceras'
- 'Popanoceras bosei belongs to Popanoceras' according to Smith 1927
- 'Popanoceras bosei is recombined as Propopanoceras bosei'
- 'Popanoceras clausum is recombined as Tauroceras clausum'
- 'Popanoceras congregale belongs to Popanoceras'
- 'Popanoceras hanieli belongs to Popanoceras' according to Smith 1927
- 'Popanoceras hanieli belongs to Popanoceras'
- 'Popanoceras indoaustralicum is recombined as Pamiropopanoceras indoaustralicum'
- 'Popanoceras krasnopolskyi is recombined as Waagenina krasnopolskyi'
- 'Popanoceras lahuseni belongs to Popanoceras' according to Karpinsky 1889
- 'Popanoceras lahuseni is recombined as Propopanoceras lahuseni'
- 'Popanoceras moelleri is recombined as Tauroceras moelleri'
- 'Popanoceras multistriatum is recombined as Tauroceras multistriatum'
- 'Popanoceras polypetale belongs to Popanoceras'
- 'Popanoceras romanowskyi is recombined as Cardiella romanowskyi'
- 'Popanoceras scrobiculatum is recombined as Tauroceras scrobiculatum'
- 'Popanoceras simplex belongs to Popanoceras'
- 'Popanoceras sintasense belongs to Popanoceras'
- 'Popanoceras subtumarense belongs to Popanoceras'
- 'Popanoceras toumanskayae belongs to Popanoceras'
- 'Popanoceras trimurti is recombined as Stacheoceras trimurti'
- 'Popanoceras tschernowi belongs to Popanoceras'
- 'Popanoceras tschernyschewi is recombined as Stacheoceras tschernyschewi'
- 'Popanoceras tumarense belongs to Popanoceras'
- 'Popanoceras walcotti belongs to Popanoceras'
- 'Popanoceras xizangense is recombined as Tauroceras xizangense'
- 'Popanocerataceae belongs to Goniatitina'
- 'Popanoceratidae belongs to Popanocerataceae'
- 'Praeglyphiocerida is corrected as Praeglyphioceratida and belongs to Ammonoidea'
- 'Preshumardites bogoslovskyi is recombined as Andrianovia bogoslovskyi'
- 'Preshumardites gorbunovi is recombined as Andrianovia gorbunovi'
- 'Preshumardites sakmarae is recombined as Andrianovia sakmarae'
- 'Proceratites is a subjective synonym of Xenodiscus'
- 'Prolecanitacea belongs to Prolecanitina'
- 'Prolecanitida belongs to Ammonoidea'
- 'Prolecanitina belongs to Prolecanitida'
- 'Pronoritaceae belongs to Medlicottiina'
- 'Pronorites timorensis is recombined as Metapronorites timorensis'
- 'Pronorites vulgaris is recombined as Sakmarites vulgaris'
- 'Pronoritidae belongs to Pronoritaceae'
- 'Properrinites belongs to Paraperrinitinae'
- 'Properrinites denhami is recombined as Subperrinites denhami'
- 'Properrinites deroeveri belongs to Properrinites'
- 'Properrinites dmitrievi belongs to Properrinites'
- 'Properrinites furnishi is recombined as Subperrinites furnishi'
- 'Properrinites mooreae is recombined as Subperrinites mooreae'
- 'Properrinites nevadensis belongs to Properrinites'
- 'Properrinites plummeri is recombined as Subperrinites plummeri'
- 'Properrinites vicinus is recombined as Metaperrinites vicinus'
- 'Propinacoceras belongs to Propinacoceratinae'
- 'Propinacoceras affine belongs to Propinacoceras'
- 'Propinacoceras ajense belongs to Propinacoceras'
- 'Propinacoceras aktubense belongs to Propinacoceras'
- 'Propinacoceras americanum belongs to Propinacoceras'
- 'Propinacoceras asiatica is corrected as Propinacoceras asiaticum and belongs to Propinacoceras'
- 'Propinacoceras australe is recombined as Bamyaniceras australe'
- 'Propinacoceras baranovi is recombined as Bamyaniceras baranovi'
- 'Propinacoceras beyrichi belongs to Propinacoceras'
- 'Propinacoceras bornemani is recombined as Bamyaniceras bornemani'
- 'Propinacoceras busterense belongs to Propinacoceras'
- 'Propinacoceras darwasi is recombined as Bamyaniceras darwasi'
- 'Propinacoceras galilaei belongs to Propinacoceras'
- 'Propinacoceras hidium is recombined as Difuntites hidius'
- 'Propinacoceras insulcatum belongs to Propinacoceras'
- 'Propinacoceras insulcatum is replaced by Medlicottia smithi'
- 'Propinacoceras insulcatum belongs to Propinacoceras' according to Haniel 1915
- 'Propinacoceras junctum belongs to Propinacoceras'
- 'Propinacoceras knighti is recombined as Bamyaniceras knighti'
- 'Propinacoceras modestum belongs to Propinacoceras'
- 'Propinacoceras rhipaeum is recombined as Artioceras rhipaeum'
- 'Propinacoceras sangobense belongs to Propinacoceras'
- 'Propinacoceras shuangputangense belongs to Propinacoceras'
- 'Propinacoceras simile belongs to Propinacoceras' according to Haniel 1915
- 'Propinacoceras simile is recombined as Bamyaniceras simile'
- 'Propinacoceras toumanskayae belongs to Propinacoceras'
- 'Propinacoceratinae belongs to Medlicottiidae'
- 'Propopanoceras belongs to Popanoceratidae'
- 'Propopanoceras incallidum belongs to Propopanoceras' according to Ruzhencev 1938
- 'Propopanoceras incallidum belongs to Propopanoceras'
- 'Propopanoceras kueichowense is recombined as Pamiropopanoceras kueichowense'
- 'Propopanoceras postsimense belongs to Propopanoceras' according to Ruzhencev 1951
- 'Propopanoceras postsimense belongs to Propopanoceras'
- 'Propopanoceras ruzhencevi belongs to Propopanoceras'
- 'Propopanoceras simense belongs to Propopanoceras' according to Ruzhencev 1951
- 'Propopanoceras simense belongs to Propopanoceras'
- 'Prosicanites belongs to Sicanitinae'
- 'Prosicanites edelsteini belongs to Prosicanites' according to Toumansky 1937
- 'Prosicanites edelsteini belongs to Prosicanites'
- 'Prosicanites laxilectus belongs to Prosicanites'
- 'Prosicanites minutus belongs to Prosicanites'
- 'Prostacheoceras belongs to Vidrioceratidae'
- 'Prostacheoceras alter belongs to Prostacheoceras'
- 'Prostacheoceras darvasicum belongs to Prostacheoceras'
- 'Prostacheoceras langi belongs to Prostacheoceras'
- 'Prostacheoceras longilobatum belongs to Prostacheoceras'
- 'Prostacheoceras principale belongs to Prostacheoceras'
- 'Prostacheoceras shaoyangense belongs to Prostacheoceras' according to Zhou 1987
- 'Prostacheoceras shaoyangense belongs to Prostacheoceras'
- 'Prostacheoceras strictum belongs to Prostacheoceras'
- 'Prothalassoceras belongs to Thalassoceratinae'
- 'Prothalassoceras bogoslovskayae is recombined as Allothalassoceras bogoslovskayae'
- 'Prothalassoceras bostocki belongs to Prothalassoceras'
- 'Prothalassoceras inexpectans is recombined as Eothalassoceras inexpectans' according to Miller and Furnish 1940
- 'Prothalassoceras inexpectans is recombined as Eothalassoceras inexpectans'
- 'Prothalassoceras sangvorense is recombined as Allothalassoceras sangvorense'
- 'Prothalassoceras serratum belongs to Prothalassoceras'
- 'Prothalassoceras solitum belongs to Prothalassoceras'
- 'Prothalassoceras umbilicatum belongs to Prothalassoceras' according to Ruzhencev 1952
- 'Prothalassoceras umbilicatum belongs to Prothalassoceras'
- 'Prothalassoceras welleri belongs to Prothalassoceras'
- 'Protopopanoceras belongs to Popanoceratidae'
- 'Protopopanoceras sublahuseni belongs to Protopopanoceras'
- 'Protopopanoceras sublahuseni belongs to Protopopanoceras' according to Gerassimov 1937
- 'Prototoceras belongs to Araxoceratidae'
- 'Prototoceras anfuense belongs to Prototoceras'
- 'Prototoceras complanatum belongs to Prototoceras'
- 'Prototoceras compressum belongs to Prototoceras' according to Bando 1979
- 'Prototoceras compressum belongs to Prototoceras'
- 'Prototoceras discoidale belongs to Prototoceras' according to Ruzhencev 1963
- 'Prototoceras discoidale belongs to Prototoceras'
- 'Prototoceras fengchengense belongs to Prototoceras'
- 'Prototoceras inflatum belongs to Prototoceras'
- 'Prototoceras japonicum belongs to Prototoceras'
- 'Prototoceras longilobatum belongs to Prototoceras'
- 'Prototoceras multidenticulatum belongs to Prototoceras'
- 'Prototoceras pachygyrum belongs to Prototoceras'
- 'Prototoceras parallelum belongs to Prototoceras'
- 'Prototoceras plicatum belongs to Prototoceras'
- 'Prototoceras xiangulingense belongs to Prototoceras'
- 'Pseudagathiceras belongs to Adrianitinae'
- 'Pseudagathiceras difuntense belongs to Pseudagathiceras'
- 'Pseudagathiceras ornatum belongs to Pseudagathiceras'
- 'Pseudagathiceras spinosum belongs to Pseudagathiceras'
- 'Pseudogastrioceras belongs to Pseudogastrioceratidae'
- 'Pseudogastrioceras fortieri is recombined as Daubichites fortieri'
- 'Pseudogastrioceras gigantum belongs to Pseudogastrioceras'
- 'Pseudogastrioceras goochi is recombined as Daubichites goochi'
- 'Pseudogastrioceras guangxiense belongs to Pseudogastrioceras'
- 'Pseudogastrioceras guizhouense belongs to Pseudogastrioceras'
- 'Pseudogastrioceras haacki is recombined as Roadoceras haacki'
- 'Pseudogastrioceras hunggermiaoensis is recombined as Daubichites hunggermiaoensis'
- 'Pseudogastrioceras jiangxiense belongs to Pseudogastrioceras'
- 'Pseudogastrioceras mckeei is recombined as Altudoceras mckeei'
- 'Pseudogastrioceras pokolbinense is recombined as Uraloceras pokolbinense'
- 'Pseudogastrioceratidae belongs to Neoicocerataceae'
- 'Pseudohaloritaceae belongs to Pseudohaloritina'
- 'Pseudohalorites belongs to Pseudohaloritinae'
- 'Pseudohalorites arabicus is recombined as Zhonglupuceras arabicus'
- 'Pseudohalorites celestris belongs to Pseudohalorites' according to Yabe 1928
- 'Pseudohalorites celestris is recombined as Zhonglupuceras celestre'
- 'Pseudohalorites densistriatus is recombined as Zhonglupuceras densistriatum'
- 'Pseudohalorites didontus belongs to Pseudohalorites'
- 'Pseudohalorites hsieri belongs to Pseudohalorites' according to Chao 1940
- 'Pseudohalorites hsieri belongs to Pseudohalorites'
- 'Pseudohalorites mapesi is recombined as Zhonglupuceras mapesi'
- 'Pseudohalorites monodontus belongs to Pseudohalorites'
- 'Pseudohalorites multidontus belongs to Pseudohalorites'
- 'Pseudohalorites subglobosus belongs to Pseudohalorites' according to Yabe 1928
- 'Pseudohalorites subglobosus belongs to Pseudohalorites'
- 'Pseudohaloritidae belongs to Pseudohaloritaceae'
- 'Pseudohaloritina belongs to Tornoceratida'
- 'Pseudohaloritinae belongs to Pseudohaloritidae'
- 'Pseudometalegoceras belongs to Metalegoceratinae'
- 'Pseudoschistoceras belongs to Metalegoceratinae'
- 'Pseudoschistoceras irianense belongs to Pseudoschistoceras' according to Glenister 1983
- 'Pseudoschistoceras irianense belongs to Pseudoschistoceras'
- 'Pseudoschistoceras simile belongs to Pseudoschistoceras'
- 'Pseudostephanites is a subjective synonym of Tapashanites'
- 'Pseudostephanites nodosus is recombined as Tapashanites nodosus'
- 'Pseudosverdrupites belongs to Spirolegoceratidae'
- 'Pseudosverdrupites budnikovi belongs to Pseudosverdrupites'
- 'Pseudotirolites belongs to Pseudotirolitidae'
- 'Pseudotirolites acuticostatus belongs to Pseudotirolites'
- 'Pseudotirolites acutus belongs to Pseudotirolites'
- 'Pseudotirolites anshunensis belongs to Pseudotirolites'
- 'Pseudotirolites azariani belongs to Pseudotirolites'
- 'Pseudotirolites disconnectus belongs to Pseudotirolites'
- 'Pseudotirolites dislobatus belongs to Pseudotirolites'
- 'Pseudotirolites guixianensis belongs to Pseudotirolites'
- 'Pseudotirolites laibinensis belongs to Pseudotirolites'
- 'Pseudotirolites lativentrosus belongs to Pseudotirolites' according to Chao and Liang 1965
- 'Pseudotirolites lativentrosus belongs to Pseudotirolites'
- 'Pseudotirolites mapingensis is recombined as Pleuronodoceras mapingense'
- 'Pseudotirolites orientalis belongs to Pseudotirolites'
- 'Pseudotirolites qianjiangensis belongs to Pseudotirolites'
- 'Pseudotirolites qinglongensis belongs to Pseudotirolites'
- 'Pseudotirolites radiaplicatus belongs to Pseudotirolites'
- 'Pseudotirolites regularis belongs to Pseudotirolites'
- 'Pseudotirolites shaheensis belongs to Pseudotirolites' according to Yang and Lu 1987
- 'Pseudotirolites shaheensis belongs to Pseudotirolites'
- 'Pseudotirolites varians belongs to Pseudotirolites'
- 'Pseudotirolitidae belongs to Xenodiscaceae'
- 'Pseudotoceras belongs to Araxoceratidae'
- 'Pseudotoceras admirabile is recombined as Julfotoceras admirabile'
- 'Pseudotoceras armenorum belongs to Pseudotoceras' according to Ruzhencev 1962
- 'Pseudotoceras armenorum belongs to Pseudotoceras'
- 'Pseudovidrioceras belongs to Marathonitinae'
- 'Ptychites cumminsi is recombined as Metaperrinites cumminsi'
- 'Qianjiangoceras is a subjective synonym of Tapashanites'
- 'Qianjiangoceras anhuiense belongs to Qianjiangoceras' according to Guo 1988
- 'Qianjiangoceras anhuiense is recombined as Tapashanites anhuiensis'
- 'Qianjiangoceras multiseptatum is recombined as Tapashanites multiseptatus'
- 'Qinglongites belongs to Shouchangoceratinae'
- 'Qinglongites compressus belongs to Qinglongites'
- 'Qinglongites costatus belongs to Qinglongites'
- 'Qinglongites curvatus belongs to Qinglongites'
- 'Qinglongites obesus belongs to Qinglongites'
- 'Retiogastrioceras belongs to Pseudogastrioceratidae'
- 'Retiogastrioceras meitianense belongs to Retiogastrioceras'
- 'Retiogastrioceras pulchrium belongs to Retiogastrioceras'
- 'Ripernites belongs to Paraperrinitinae'
- 'Ripernites pressulus belongs to Ripernites'
- 'Riphaeites schabalkini is recombined as Eothinites schabalkini'
- 'Roadoceras belongs to Pseudogastrioceratidae'
- 'Roadoceras bellum belongs to Roadoceras' according to Zhou 1985
- 'Roadoceras bellum belongs to Roadoceras'
- 'Roadoceras hubeiense belongs to Roadoceras' according to Xu 1977
- 'Roadoceras hubeiense belongs to Roadoceras'
- 'Roadoceras sinense belongs to Roadoceras' according to Zhou 1987
- 'Roadoceras sinense belongs to Roadoceras'
- 'Rongjiangoceras is a subjective synonym of Iranites'
- 'Rongjiangoceras lenticulare is recombined as Iranites lenticularis'
- 'Rotaraxoceras is a subjective synonym of Araxoceras'
- 'Rotaraxoceras caucasicum belongs to Rotaraxoceras' according to Ruzhencev 1959
- 'Rotaraxoceras caucasicum is recombined as Araxoceras caucasicum'
- 'Rotaraxoceras deruptum belongs to Rotaraxoceras' according to Ruzhencev 1962
- 'Rotaraxoceras deruptum is recombined as Araxoceras deruptum'
- 'Rotodiscoceras belongs to Pseudotirolitidae'
- 'Rotodiscoceras asiaticum belongs to Rotodiscoceras'
- 'Rotodiscoceras dushanense belongs to Rotodiscoceras'
- 'Rotodiscoceras guizhouense belongs to Rotodiscoceras'
- 'Rotodiscoceras langdaiense belongs to Rotodiscoceras'
- 'Rotodiscoceras latilobatum belongs to Rotodiscoceras'
- 'Rotodiscoceras longilobatum belongs to Rotodiscoceras'
- 'Rotodiscoceras nodosum belongs to Rotodiscoceras' according to Yang 1987
- 'Rotodiscoceras nodosum belongs to Rotodiscoceras'
- 'Rotodiscoceras torulosum belongs to Rotodiscoceras'
- 'Rotodiscoceras varians belongs to Rotodiscoceras'
- 'Rotodiscoceras varians belongs to Rotodiscoceras' according to Chao and Liang 1965
- 'Rotodiscoceras wangcangense belongs to Rotodiscoceras'
- 'Sageceras sakmarae is recombined as Synartinskia sakmarae'
- 'Sageceras wynnei is recombined as Episageceras wynnei'
- 'Sakmarites belongs to Pronoritidae'
- 'Sakmarites ajdaralense belongs to Sakmarites' according to Ruzhencev 1951
- 'Sakmarites ajdaralense belongs to Sakmarites'
- 'Sakmarites hanieli belongs to Sakmarites' according to Ruzhencev 1949
- 'Sakmarites hanieli belongs to Sakmarites'
- 'Sakmarites inflatus belongs to Sakmarites' according to Ruzhencev 1951
- 'Sakmarites inflatus belongs to Sakmarites'
- 'Sangzhites belongs to Shouchangoceratinae'
- 'Sangzhites aberrans belongs to Sangzhites'
- 'Sangzhites nodosus belongs to Sangzhites'
- 'Sanyangites is a subjective synonym of Araxoceras'
- 'Sanyangites circellus is recombined as Araxoceras circellum'
- 'Sanyangites latumbilicatus is recombined as Araxoceras latumbilicatum'
- 'Sanyangites lenticularis is recombined as Araxoceras lenticulare'
- 'Sanyangites liratus is recombined as Araxoceras liratum'
- 'Sanyangites lucunensis is recombined as Araxoceras lucunense'
- 'Sanyangites multilobatus is recombined as Araxoceras multilobatum'
- 'Sanyangites obesus is recombined as Araxoceras obesum'
- 'Sanyangites rotulus is recombined as Araxoceras rotulum'
- 'Sanyangites serratus is recombined as Araxoceras serratum'
- 'Sanyangites simplex is recombined as Araxoceras simplex'
- 'Sanyangites tricarinatus is recombined as Araxoceras tricarinatum'
- 'Sanyangites umbilicatus is recombined as Araxoceras umbilicatum'
- 'Schizoloboceras belongs to Pseudotirolitidae'
- 'Schizoloboceras fusuiense belongs to Schizoloboceras'
- 'Shangraoceras belongs to Shouchangoceratinae'
- 'Shangraoceras falcoplicatum belongs to Shangraoceras'
- 'Shangraoceras robustum belongs to Shangraoceras'
- 'Shaoyangoceras is a subjective synonym of Yinoceras'
- 'Shaoyangoceras trifurcatum is recombined as Yinoceras trifurcatum'
- 'Shengoceras belongs to Kufengoceratidae'
- 'Shengoceras lenticulare belongs to Shengoceras'
- 'Shevyrevites belongs to Xenodiscidae'
- 'Shevyrevites shevyrevi belongs to Shevyrevites'
- 'Shikhanites belongs to Shikhanitidae'
- 'Shikhanites singularis belongs to Shikhanites' according to Ruzhencev 1938
- 'Shikhanites singularis belongs to Shikhanites'
- 'Shikhanitidae belongs to Pronoritaceae'
- 'Shouchangoceras belongs to Shouchangoceratinae'
- 'Shouchangoceras americanum belongs to Shouchangoceras'
- 'Shouchangoceras multinodosum belongs to Shouchangoceras'
- 'Shouchangoceras reticulatum belongs to Shouchangoceras'
- 'Shouchangoceras shouchangense belongs to Shouchangoceras'
- 'Shouchangoceras subglobosum belongs to Shouchangoceras'
- 'Shouchangoceratinae belongs to Pseudohaloritidae'
- 'Shuangyangites belongs to Kufengoceratidae'
- 'Shuangyangites involutus belongs to Shuangyangites'
- 'Shumarditaceae belongs to Cyclolobina'
- 'Shyndoceras belongs to Paraperrinitinae'
- 'Shyndoceras obsoletus is corrected as Shyndoceras obsoletum and belongs to Shyndoceras'
- 'Sicanites belongs to Sicanitinae'
- 'Sicanites bactrianus belongs to Sicanites'
- 'Sicanites croaticus belongs to Sicanites' according to Vogl 1913
- 'Sicanites croaticus belongs to Sicanites'
- 'Sicanites evolutus belongs to Sicanites'
- 'Sicanites papuanus belongs to Sicanites' according to Smith 1927
- 'Sicanites papuanus is recombined as Prosicanites papuanus'
- 'Sicanitinae belongs to Medlicottiidae'
- 'Sinoceltites is a subjective synonym of Tapashanites'
- 'Sinoceltites curvatus is recombined as Tapashanites curvatus'
- 'Sinoceltites delicatus is recombined as Tapashanites delicatus'
- 'Sinoceltites minutus is recombined as Tapashanites minutus'
- 'Sinoceltites opimus is recombined as Tapashanites opimus'
- 'Sinoceltites sichuanensis is recombined as Tapashanites sichuanensis'
- 'Sizilites belongs to Pamiritellinae'
- 'Sizilites kurdistanensis belongs to Sizilites'
- 'Somoholitaceae belongs to Goniatitina'
- 'Somoholites belongs to Somoholitidae'
- 'Somoholites andrianovi belongs to Somoholites'
- 'Somoholites artus belongs to Somoholites'
- 'Somoholites sebyanicus belongs to Somoholites'
- 'Somoholites serus belongs to Somoholites'
- 'Somoholites shikhanensis belongs to Somoholites' according to Ruzhencev 1938
- 'Somoholites shikhanensis belongs to Somoholites'
- 'Somoholitidae belongs to Somoholitaceae'
- 'Sosioceras belongs to Shouchangoceratinae'
- 'Sosiocrimites darvasicus belongs to Sosiocrimites'
- 'Spirolegoceras belongs to Spirolegoceratidae'
- 'Spirolegoceras fischeri belongs to Spirolegoceras'
- 'Spirolegoceras harkeri is recombined as Sverdrupites harkeri'
- 'Spirolegoceratidae belongs to Neoicocerataceae'
- 'Stacheoceras belongs to Neostacheoceratinae'
- 'Stacheoceras (Marathonites) was reranked as Marathonites and belongs to Marathonitinae'
- 'Stacheoceras (Marathonites) hargisi is recombined as Subkargalites hargisi'
- 'Stacheoceras andrussowi [misspelled as Stacheoceras andrussovi] belongs to Stacheoceras'
- 'Stacheoceras arthaberi belongs to Stacheoceras'
- 'Stacheoceras beishanense belongs to Stacheoceras' according to Guo 1979
- 'Stacheoceras beishanense belongs to Stacheoceras'
- 'Stacheoceras benedictinum belongs to Stacheoceras'
- 'Stacheoceras boesei [misspelled as Stacheoceras bosei] belongs to Stacheoceras'
- 'Stacheoceras borissiaki belongs to Stacheoceras'
- 'Stacheoceras bowmani is recombined as Tauroceras bowmani'
- 'Stacheoceras bransonorum is recombined as Glassoceras bransonorum'
- 'Stacheoceras burnense is recombined as Prostacheoceras burnense'
- 'Stacheoceras chaotianense belongs to Stacheoceras'
- 'Stacheoceras collignoni belongs to Stacheoceras'
- 'Stacheoceras darae belongs to Stacheoceras'
- 'Stacheoceras diblasii belongs to Stacheoceras'
- 'Stacheoceras gaudryi belongs to Stacheoceras'
- 'Stacheoceras gemmellaroi belongs to Stacheoceras'
- 'Stacheoceras gilliamense belongs to Stacheoceras'
- 'Stacheoceras globosum belongs to Stacheoceras'
- 'Stacheoceras gordoni belongs to Stacheoceras'
- 'Stacheoceras gruenewaldti belongs to Stacheoceras'
- 'Stacheoceras iwaizakiense belongs to Stacheoceras'
- 'Stacheoceras karpinskyi belongs to Stacheoceras'
- 'Stacheoceras kussicum is recombined as Cardiella kussica'
- 'Stacheoceras lijiangense belongs to Stacheoceras'
- 'Stacheoceras mediterraneum belongs to Stacheoceras'
- 'Stacheoceras megamultidentatum belongs to Stacheoceras'
- 'Stacheoceras mongeri belongs to Stacheoceras'
- 'Stacheoceras multidentatum is recombined as Prostacheoceras multidentatum'
- 'Stacheoceras normani is recombined as Glassoceras normani'
- 'Stacheoceras oblatum belongs to Stacheoceras'
- 'Stacheoceras orientale belongs to Stacheoceras'
- 'Stacheoceras pelagicum belongs to Stacheoceras'
- 'Stacheoceras pengboense belongs to Stacheoceras'
- 'Stacheoceras perspectivum belongs to Stacheoceras'
- 'Stacheoceras pygmeum is recombined as Pseudovidrioceras pygmaeum'
- 'Stacheoceras quadridens belongs to Stacheoceras' according to Hayasaka 1947
- 'Stacheoceras quadridens belongs to Stacheoceras'
- 'Stacheoceras raridentatum belongs to Stacheoceras' according to Sheng 1988
- 'Stacheoceras raridentatum belongs to Stacheoceras'
- 'Stacheoceras rothi belongs to Stacheoceras'
- 'Stacheoceras sexlobatum belongs to Stacheoceras'
- 'Stacheoceras shuangyangense is recombined as Prostacheoceras shuangyangense'
- 'Stacheoceras suevi is recombined as Cardiella suevi'
- 'Stacheoceras tauricum is recombined as Prostacheoceras tauricum'
- 'Stacheoceras tietzei belongs to Stacheoceras'
- 'Stacheoceras timorense is recombined as Kargalites timorensis'
- 'Stacheoceras toumanskyae is corrected as Stacheoceras toumanskayae and belongs to Stacheoceras'
- 'Stacheoceras vogti belongs to Stacheoceras'
- 'Stacheoceras xiukangense belongs to Stacheoceras'
- 'Stacheoceras yajiangense belongs to Stacheoceras'
- 'Stenolobulites belongs to Pseudogastrioceratidae'
- 'Stenolobulites depressus belongs to Stenolobulites'
- 'Stenolobulites sinuosus belongs to Stenolobulites'
- 'Stenolobulites stenolobulus belongs to Stenolobulites'
- 'Stenolobulites subglobosus belongs to Stenolobulites'
- 'Stephanites waageni is recombined as Paratirolites waageni'
- 'Strigogoniatites belongs to Pseudogastrioceratidae'
- 'Strigogoniatites changningensis belongs to Strigogoniatites' according to Zhou 1987
- 'Strigogoniatites fountaini belongs to Strigogoniatites'
- 'Strigogoniatites kingi belongs to Strigogoniatites'
- 'Strigogoniatites liuchowensis belongs to Strigogoniatites'
- 'Strigogoniatites nodosus belongs to Strigogoniatites'
- 'Strigogoniatites umbilicatus belongs to Strigogoniatites'
- 'Suakites belongs to Marathonitinae'
- 'Suakites compositus belongs to Suakites'
- 'Subperrinites belongs to Perrinitinae'
- 'Sundaites belongs to Sundaitidae'
- 'Sundaites levis belongs to Sundaites'
- 'Sundaitidae belongs to Medlicottiaceae'
- 'Sverdrupites belongs to Spirolegoceratidae'
- 'Sverdrupites amundseni belongs to Sverdrupites'
- 'Sverdrupites baraiensis belongs to Sverdrupites'
- 'Svetlanoceras belongs to Paragastrioceratidae'
- 'Svetlanoceras moylei belongs to Svetlanoceras'
- 'Svetlanoceras notium belongs to Svetlanoceras'
- 'Svetlanoceras primore belongs to Svetlanoceras'
- 'Synartinskia belongs to Sicanitinae'
- 'Synartinskia belcheri is recombined as Parasicanites belcheri'
- 'Synartinskia orientalis belongs to Synartinskia'
- 'Synartinskia principalis belongs to Synartinskia'
- 'Synuraloceras belongs to Paragastrioceratidae'
- 'Synuraloceras carinatum belongs to Synuraloceras' according to Ruzhencev 1952
- 'Synuraloceras carinatum belongs to Synuraloceras'
- 'Syrdenites belongs to Medlicottiinae'
- 'Syrdenites stoyanowi belongs to Syrdenites'
- 'Tabantalites belongs to Vidrioceratidae'
- 'Tabantalites bifurcatus belongs to Tabantalites'
- 'Tabantalites etchiensis belongs to Tabantalites'
- 'Tabantalites pamiricus belongs to Tabantalites'
- 'Tapashanites belongs to Xenodiscidae'
- 'Tapashanites achurensis belongs to Tapashanites' according to Zakharov 1983
- 'Tapashanites achurensis belongs to Tapashanites'
- 'Tapashanites acuticostatus belongs to Tapashanites'
- 'Tapashanites changxinensis belongs to Tapashanites' according to Yang and Huo 1987
- 'Tapashanites changxinensis belongs to Tapashanites'
- 'Tapashanites changxingensis belongs to Tapashanites'
- 'Tapashanites chaotianensis belongs to Tapashanites'
- 'Tapashanites compressus belongs to Tapashanites'
- 'Tapashanites costatus belongs to Tapashanites'
- 'Tapashanites curvoplicatus belongs to Tapashanites'
- 'Tapashanites floriformis belongs to Tapashanites'
- 'Tapashanites honghensis belongs to Tapashanites'
- 'Tapashanites honghensis belongs to Tapashanites' according to Yang 1987
- 'Tapashanites kwangsiensis belongs to Tapashanites' according to Yang 1987
- 'Tapashanites kwangsiensis belongs to Tapashanites'
- 'Tapashanites latumbilicatus belongs to Tapashanites' according to Zhao et al. 1978
- 'Tapashanites latumbilicatus belongs to Tapashanites'
- 'Tapashanites meishanensis belongs to Tapashanites' according to Yang and Huo 1987
- 'Tapashanites meishanensis belongs to Tapashanites'
- 'Tapashanites mingyuexiaensis belongs to Tapashanites'
- 'Tapashanites robustus belongs to Tapashanites'
- 'Tapashanites tenuicostatus belongs to Tapashanites'
- 'Tauroceras belongs to Popanoceratidae'
- 'Tauroceras lineatum belongs to Tauroceras'
- 'Texoceras belongs to Texoceratinae'
- 'Texoceratinae belongs to Adrianitidae'
- 'Thalassoceras belongs to Thalassoceratinae'
- 'Thalassoceras biforme is recombined as Prothalassoceras biforme'
- 'Thalassoceras busterense belongs to Thalassoceras' according to Toumanskaya 1949
- 'Thalassoceras busterense is recombined as Allothalassoceras busterense'
- 'Thalassoceras chabakowi is a subjective synonym of Thalassoceras gemmellaroi'
- 'Thalassoceras dieneri belongs to Thalassoceras' according to Smith 1927
- 'Thalassoceras dieneri is recombined as Prothalassoceras dieneri'
- 'Thalassoceras gemmellaroi belongs to Thalassoceras'
- 'Thalassoceras karpinskyi belongs to Thalassoceras' according to Toumanskaya 1931
- 'Thalassoceras karpinskyi is recombined as Allothalassoceras karpinskyi'
- 'Thalassoceras mediterraneum belongs to Thalassoceras'
- 'Thalassoceras microdiscus is recombined as Aristoceratoides microdiscus'
- 'Thalassoceras multifidum belongs to Thalassoceras' according to Ruzhencev 1951
- 'Thalassoceras multifidum belongs to Thalassoceras'
- 'Thalassoceras phillipsi belongs to Thalassoceras'
- 'Thalassoceras subreticulatum belongs to Thalassoceras'
- 'Thalassoceras ulkense belongs to Thalassoceras' according to Ruzhencev 1952
- 'Thalassoceras ulkense belongs to Thalassoceras'
- 'Thalassoceras varicosum is recombined as Aristoceratoides varicosum'
- 'Thalassoceras wadei belongs to Thalassoceras'
- 'Thalassocerataceae belongs to Goniatitina'
- 'Thalassoceratidae belongs to Thalassocerataceae'
- 'Thalassoceratinae belongs to Thalassoceratidae'
- 'Timanocerina is corrected as Timanoceratina and belongs to Anarcestida'
- 'Timorites belongs to Cyclolobidae'
- 'Timorites angrenoensis belongs to Timorites'
- 'Timorites curvicostatus belongs to Timorites'
- 'Timorites distortus belongs to Timorites'
- 'Timorites giganteus belongs to Timorites'
- 'Timorites hanieli belongs to Timorites'
- 'Timorites schucherti belongs to Timorites'
- 'Timorites sigillarius belongs to Timorites'
- 'Timorites simplus belongs to Timorites'
- 'Timorites sinensis belongs to Timorites'
- 'Timorites striatus belongs to Timorites'
- 'Timorites takaizumii belongs to Timorites'
- 'Timorites uddeni belongs to Timorites'
- 'Timorites yunnanensis belongs to Timorites'
- 'Tirolites asiaticus is recombined as Pseudotirolites asiaticus'
- 'Tongluceras belongs to Cyclolobidae'
- 'Tongluceras lengwuense belongs to Tongluceras'
- 'Tongluceras tongguanense belongs to Tongluceras'
- 'Tornoceratida belongs to Ammonoidea'
- 'Tornoceratina belongs to Tornoceratida'
- 'Trigonogastrites is a subjective synonym of Pseudotirolites'
- 'Trigonogastrites changxingensis is recombined as Pseudotirolites changxingensis'
- 'Tumaroceras belongs to Paragastrioceratidae'
- 'Tumaroceras curvatum belongs to Tumaroceras'
- 'Tumaroceras dignum belongs to Tumaroceras'
- 'Tumaroceras endybalense belongs to Tumaroceras' according to Adrianov 1985
- 'Tumaroceras endybalense belongs to Tumaroceras'
- 'Tumaroceras inflatum belongs to Tumaroceras'
- 'Tumaroceras kashirzevi belongs to Tumaroceras'
- 'Tumaroceras subyakutorum belongs to Tumaroceras'
- 'Tumaroceras tuberculatum is recombined as Paragastrioceras tuberculatum'
- 'Tumaroceras volkodavi belongs to Tumaroceras'
- 'Tumaroceras yakutorum belongs to Tumaroceras'
- 'Uddenitinae belongs to Medlicottiidae'
- 'Uraloceras belongs to Paragastrioceratidae'
- 'Uraloceras alekense belongs to Uraloceras'
- 'Uraloceras belgushkense belongs to Uraloceras'
- 'Uraloceras cancellatum belongs to Uraloceras'
- 'Uraloceras chinense belongs to Uraloceras'
- 'Uraloceras evencorum belongs to Uraloceras'
- 'Uraloceras extenuatum belongs to Uraloceras'
- 'Uraloceras gracilentum belongs to Uraloceras'
- 'Uraloceras irwinense belongs to Uraloceras'
- 'Uraloceras kitense belongs to Uraloceras' according to Popov 1970
- 'Uraloceras kitense belongs to Uraloceras'
- 'Uraloceras kosvaense belongs to Uraloceras' according to Bogoslovskaya 1962
- 'Uraloceras kosvaense belongs to Uraloceras'
- 'Uraloceras limatulum belongs to Uraloceras' according to Ruzhencev 1938
- 'Uraloceras limatulum belongs to Uraloceras'
- 'Uraloceras lobulatum is recombined as Gobioceras lobulatum'
- 'Uraloceras plicatum belongs to Uraloceras'
- 'Uraloceras popowi belongs to Uraloceras'
- 'Uraloceras serpentinum is recombined as Svetlanoceras serpentinum'
- 'Uraloceras simense belongs to Uraloceras'
- 'Uraloceras simulatum belongs to Uraloceras'
- 'Uraloceras sofronizkyi belongs to Uraloceras'
- 'Uraloceras tchuvaschovi belongs to Uraloceras'
- 'Uraloceras tumidum belongs to Uraloceras'
- 'Uraloceras victum belongs to Uraloceras'
- 'Uraloceras whitehousei belongs to Uraloceras'
- 'Urartoceras is a subjective synonym of Prototoceras'
- 'Urartoceras abichianum is recombined as Prototoceras abichianum'
- 'Urartoceras abichianum belongs to Urartoceras' according to Ruzhencev 1959
- 'Vanartinskia belongs to Sicanitinae'
- 'Vanartinskia asiana belongs to Vanartinskia'
- 'Vedioceras is a subjective synonym of Araxoceras'
- 'Vedioceras nakamurai belongs to Vedioceras' according to Bando 1979
- 'Vedioceras nakamurai is recombined as Araxoceras nakamurai'
- 'Vedioceras ogbinense belongs to Vedioceras' according to Ruzhencev 1962
- 'Vedioceras ogbinense is recombined as Araxoceras ogbinense'
- 'Vedioceras umbonovarum belongs to Vedioceras' according to Ruzhencev 1962
- 'Vedioceras umbonovarum is recombined as Araxoceras umbonovarum'
- 'Vedioceras ventroplanum belongs to Vedioceras' according to Ruzhencev 1962
- 'Vedioceras ventroplanum is recombined as Araxoceras ventroplanum'
- 'Vedioceras ventrosulcatum belongs to Vedioceras' according to Ruzhencev 1962
- 'Vedioceras ventrosulcatum is recombined as Araxoceras ventrosulcatum'
- 'Veruzhites belongs to Emilitinae'
- 'Veruzhites pamiricus belongs to Veruzhites'
- 'Vescotoceras is a subjective synonym of Prototoceras'
- 'Vescotoceras acutum belongs to Vescotoceras' according to Ruzhencev 1959
- 'Vescotoceras acutum is recombined as Prototoceras acutum'
- 'Vescotoceras evanidum belongs to Vescotoceras' according to Ruzhencev 1962
- 'Vescotoceras evanidum is recombined as Prototoceras evanidum'
- 'Vescotoceras serratum belongs to Vescotoceras' according to Ruzhencev 1962
- 'Vescotoceras serratum is recombined as Prototoceras serratum'
- 'Vescotoceras stenosellatum is recombined as Prototoceras stenosellatum'
- 'Vidrioceras girtyi is recombined as Pseudovidrioceras girtyi'
- 'Vidrioceras subquadratum is recombined as Kargalites subquadratus'
- 'Vidrioceratidae belongs to Cyclolobaceae'
- 'Waagenina belongs to Neostacheoceratinae'
- 'Waagenina subinterrupta belongs to Waagenina'
- 'Waagenina xiangtanensis belongs to Waagenina'
- 'Waagenoceras belongs to Cyclolobidae'
- 'Waagenoceras adrianense belongs to Waagenoceras'
- 'Waagenoceras canadensis is recombined as Tongluceras canadense'
- 'Waagenoceras dieneri belongs to Waagenoceras'
- 'Waagenoceras dieneri karpinskyi is recombined as Waagenoceras karpinskyi'
- 'Waagenoceras gansuense belongs to Waagenoceras'
- 'Waagenoceras gemmellaroi is recombined as Timorites gemmellaroi'
- 'Waagenoceras girtyi belongs to Waagenoceras'
- 'Waagenoceras guadalupense is recombined as Mexicoceras guadalupense'
- 'Waagenoceras hilli is recombined as Perrinites hilli'
- 'Waagenoceras intermedium is recombined as Timorites intermedius'
- 'Waagenoceras lidacense is recombined as Demarezites lidacensis'
- 'Waagenoceras longyanense belongs to Waagenoceras'
- 'Waagenoceras minutum belongs to Waagenoceras'
- 'Waagenoceras mojsisovicsi belongs to Waagenoceras'
- 'Waagenoceras nikitini belongs to Waagenoceras'
- 'Waagenoceras obliquum belongs to Waagenoceras'
- 'Waagenoceras oyensi is recombined as Demarezites oyensi'
- 'Waagenoceras richardsoni is recombined as Newellites richardsoni'
- 'Waagenoceras shengi is recombined as Liuzhouceras shengi'
- 'Waagenoceras simplex is recombined as Shengoceras simplex'
- 'Waagenoceras stachei belongs to Waagenoceras'
- 'Waagenoceras umbilicatum is recombined as Shengoceras umbilicatum'
- 'Xenaspis is a subjective synonym of Xenodiscus'
- 'Xenaspis araxensis is recombined as Xenodiscus araxensis'
- 'Xenaspis beedei belongs to Xenaspis' according to Smith 1927
- 'Xenaspis beedei is recombined as Xenodiscus beedei'
- 'Xenaspis skinneri is recombined as Nielsenoceras skinneri'
- 'Xenaspis xizangensis is recombined as Xenodiscus xizangensis'
- 'Xenodiscaceae belongs to Paraceltitina'
- 'Xenodiscidae belongs to Xenodiscaceae'
- 'Xenodiscites is a subjective synonym of Cibolites'
- 'Xenodiscites waageni is recombined as Cibolites waageni'
- 'Xenodiscus belongs to Xenodiscidae'
- 'Xenodiscus chaotianensis belongs to Xenodiscus'
- 'Xenodiscus dorashamensis belongs to Xenodiscus'
- 'Xenodiscus jubilaearis belongs to Xenodiscus' according to Zakharov 1986
- 'Xenodiscus jubilaearis belongs to Xenodiscus'
- 'Xenodiscus rotundus belongs to Xenodiscus' according to Haniel 1915
- 'Xenodiscus rotundus belongs to Xenodiscus'
- 'Xenodiscus subcarbonarius belongs to Xenodiscus' according to Zakharov 1986
- 'Xenodiscus subcarbonarius belongs to Xenodiscus'
- 'Xenodiscus wanneri belongs to Xenodiscus'
- 'Xiangulingites is a subjective synonym of Anderssonoceras'
- 'Xiangulingites acutus is recombined as Anderssonoceras acutum'
- 'Xiangulingites applanatus is recombined as Anderssonoceras applanatum'
- 'Xiangulingites orbilobatus is recombined as Anderssonoceras orbilobatum'
- 'Yinoceras belongs to Yinoceratinae'
- 'Yinoceras lenticulare belongs to Yinoceras'
- 'Yinoceratinae belongs to Pseudohaloritidae'
- 'Zhonglupuceras belongs to Pseudohaloritinae'
- 'Zhonglupuceras longilobum belongs to Zhonglupuceras'