Opinions from R. A. Reyment 1955
- 'Acanthoceras (Mammites) prenodosoides is recombined as Metoicoceras prenodosoides'
- 'Acanthoceras amudariense is recombined as Watinoceras amudariense'
- 'Acanthoceras eschii is recombined as Kamerunoceras eschii'
- 'Ammonites binus is recombined as Hysteroceras binum'
- 'Ammonites bouchardianus is recombined as Dipoloceras bouchardianum'
- 'Ammonites cristatus is recombined as Dipoloceras cristatum'
- 'Ammonites czoernigi is recombined as Peroniceras czoernigi'
- 'Ammonites deverianus is recombined as Romaniceras deveriai'
- 'Ammonites deverioides is recombined as Romaniceras deverioide'
- 'Ammonites latidorsatus is recombined as Desmoceras latedorsatum'
- 'Ammonites lobata is recombined as Sphenodiscus lobatus'
- 'Ammonites pachys is recombined as Mortoniceras (Mortoniceras) pachys'
- 'Ammonites pleurisepta is recombined as Sphenodiscus pleurisepta'
- 'Ammonites soutoni is recombined as Submortoniceras soutoni'
- 'Ammonites velledae is recombined as Phylloceras velledae'
- 'Ammonites westphalicus is recombined as Peroniceras westphalicum'
- 'Angolaites was reranked as Mortoniceras (Angolaites) and belongs to Mortoniceras'
- 'Anisoceras belongs to Anisoceratidae'
- 'Anisoceras perarmatum belongs to Anisoceras'
- 'Baculites belongs to Baculitidae'
- 'Baculites asper belongs to Baculites'
- 'Bauchioceras was reranked as Pseudotissotia (Bauchioceras) and belongs to Pseudotissotia'
- 'Bauchioceras (Wrightoceras) is reassigned into Pseudotissotia'
- 'Bauchioceras (Wrightoceras) wallsi is recombined as Pseudotissotia (Wrightoceras) wallsi'
- 'Benueites benueensis belongs to Benueites'
- 'Benueites spinosus belongs to Benueites'
- 'Bostrychoceras belongs to Nostoceratidae'
- 'Brancoceras orbignyi is recombined as Hysteroceras orbignyi'
- 'Choffaticeras (Choffaticeras) spathi belongs to Choffaticeras (Choffaticeras)'
- 'Coilopoceras colleti belongs to Coilopoceras'
- 'Desmoceras belongs to Desmoceratidae'
- 'Desmoceras (Pseudouhligella) calabarense belongs to Desmoceras (Pseudouhligella)'
- 'Desmoceras kamerunense is recombined as Pachydesmoceras kamerunense'
- 'Didymoceras belongs to Nostoceratidae'
- 'Dipoloceras quadratum belongs to Dipoloceras'
- 'Dipoloceras quadratum belongs to Dipoloceras' according to Spath 1921
- 'Elobiceras angustum belongs to Elobiceras'
- 'Elobiceras densicostatum belongs to Elobiceras'
- 'Elobiceras intermedium belongs to Elobiceras'
- 'Elobiceras lobitoense belongs to Elobiceras'
- 'Elobiceras newtoni belongs to Elobiceras' according to Spath 1925
- 'Elobiceras subelobiense belongs to Elobiceras'
- 'Euhystrichoceras belongs to Schloenbachiinae'
- 'Euhystrichoceras occidentale belongs to Euhystrichoceras'
- 'Euturrilites was reranked as Turrilites (Euturrilites) and belongs to Turrilites'
- 'Ezilloella ezilloensis belongs to Ezilloella'
- 'Forbesiceras sculptum belongs to Forbesiceras'
- 'Forresteria (Forresteria) serrata belongs to Forresteria (Forresteria)'
- 'Glebosoceras glebosum belongs to Glebosoceras'
- 'Gyaloceras ibo belongs to Gyaloceras'
- 'Gyaloceras smithi belongs to Gyaloceras'
- 'Heteroceras hornbyense belongs to Heteroceras' according to Whiteaves 1876
- 'Heteroceras hornbyense is recombined as Didymoceras hornbyense'
- 'Hoplitoides autenriethi is a subjective synonym of Hoplitoides gibbosulus'
- 'Hoplitoides crassicostatus belongs to Hoplitoides'
- 'Hoplitoides koeneni belongs to Hoplitoides'
- 'Hoplitoides latesellatus is a subjective synonym of Hoplitoides ingens'
- 'Hoplitoides nigeriensis is recombined as Pseudotissotia (Bauchioceras) nigeriensis'
- 'Hoplitoides wilsingi is a subjective synonym of Hoplitoides ingens'
- 'Hysteroceras semileve belongs to Hysteroceras'
- 'Kamerunoceras jacobsoni belongs to Kamerunoceras'
- 'Komeceras multifalcatum belongs to Komeceras' according to van Hoepen 1944
- 'Komeceras multifalcatum is recombined as Hysteroceras multifalcatum'
- 'Libycoceras afikpoense belongs to Libycoceras'
- 'Mammites dixeyi belongs to Mammites'
- 'Mammites dixeyi laevis belongs to Mammites dixeyi'
- 'Mammites melleguensis belongs to Mammites' according to Dubordieu 1953
- 'Mammites melleguensis is recombined as Paramammites melleguensis'
- 'Mammites mutabilis belongs to Mammites'
- 'Mammites mutabilis benueensis belongs to Mammites mutabilis'
- 'Mammites nodosoides afra belongs to Mammites nodosoides' according to Pervinquière 1907
- 'Mammites nodosoides afra is recombined as Mammites afer'
- 'Metoicoceras subnodosoides is a subjective synonym of Metoicoceras prenodosoides'
- 'Manuaniceras was reranked as Oxytropidoceras (Manuaniceras) and belongs to Oxytropidoceras'
- 'Manuaniceras ornatus belongs to Manuaniceras' according to Besairie 1936
- 'Manuaniceras ornatus is recombined as Oxytropidoceras (Manuaniceras) ornatum'
- 'Metoicoceras ornatum belongs to Metoicoceras'
- 'Mojsisovicziinae belongs to Brancoceratidae'
- 'Mortoniceras (Durnovarites) ishiaguense belongs to Mortoniceras (Durnovarites)'
- 'Mortoniceras (Durnovarites) levecostatum belongs to Mortoniceras (Durnovarites)'
- 'Mortoniceras (Mortoniceras) belongs to Mortoniceras'
- 'Mortoniceras quadrinodosum belongs to Mortoniceras' according to Spath 1932
- 'Mortoniceras quadrinodosum is recombined as Mortoniceras (Mortoniceras) quadrinodosum'
- 'Neoharpoceras densicostatum belongs to Neoharpoceras'
- 'Neokentroceras curvicornu belongs to Neokentroceras'
- 'Neokentroceras curvicornu crassicornutum belongs to Neokentroceras curvicornu'
- 'Neokentroceras speciosum is a subjective synonym of Neokentroceras curvicornu'
- 'Neoptychites (Hoplites) wohltmanni is recombined as Hoplitoides wohltmanni'
- 'Neoptychites crassus belongs to Neoptychites'
- 'Neoptychites ingens is recombined as Hoplitoides ingens'
- 'Neoptychites telingaeformis belongs to Neoptychites'
- 'Nigericeras ogojaense belongs to Nigericeras'
- 'Onitshoceras belongs to Desmoceratidae'
- 'Onitshoceras matsumotoi belongs to Onitshoceras'
- 'Ophryoceras crassinodosum belongs to Ophryoceras' according to van Hoepen 1946
- 'Ophryoceras crassinodosum is a subjective synonym of Mortoniceras (Mortoniceras) evolutum'
- 'Ophryoceras jugosum belongs to Ophryoceras' according to van Hoepen 1942
- 'Ophryoceras jugosum is a subjective synonym of Mortoniceras (Mortoniceras) evolutum'
- 'Oxytropidoceras belongs to Mojsisovicziinae'
- 'Oxytropidoceras (Androiavites) belongs to Oxytropidoceras' according to Spath 1925
- 'Oxytropidoceras (Androiavites) belongs to Oxytropidoceras'
- 'Oxytropidoceras (Androiavites) besairiei belongs to Oxytropidoceras (Androiavites)' according to Collignon 1936
- 'Oxytropidoceras (Androiavites) besairiei belongs to Oxytropidoceras (Androiavites)'
- 'Oxytropidoceras (Androiavites) paucituberculatus belongs to Oxytropidoceras (Androiavites)' according to Collignon 1936
- 'Oxytropidoceras (Androiavites) paucituberculatus is corrected as Oxytropidoceras (Androiavites) paucituberculatum and belongs to Oxytropidoceras (Androiavites)'
- 'Oxytropidoceras (Manuaniceras) boesei belongs to Oxytropidoceras (Manuaniceras)' according to Knechtel 1947
- 'Oxytropidoceras (Manuaniceras) boesei belongs to Oxytropidoceras (Manuaniceras)'
- 'Oxytropidoceras (Oxytropidoceras) belongs to Oxytropidoceras'
- 'Oxytropidoceras applanatus belongs to Oxytropidoceras' according to Collignon 1936
- 'Oxytropidoceras applanatus is recombined as Oxytropidoceras (Manuaniceras) applanatum'
- 'Pachydesmoceras belongs to Desmoceratidae'
- 'Pachydiscus belongs to Pachydiscidae'
- 'Pachydiscus stallauensis belongs to Pachydiscus' according to Imkeller 1901
- 'Pachydiscus stallauensis belongs to Pachydiscus'
- 'Pachyvascoceras costatum belongs to Pachyvascoceras'
- 'Pervinquieria barbouri is recombined as Mortoniceras (Mortoniceras) barbouri'
- 'Pervinquieria multicostata is recombined as Mortoniceras (Mortoniceras) multicostatum'
- 'Pervinquieria nodosocostata belongs to Pervinquieria' according to van Hoepen 1942
- 'Pervinquieria nodosocostata is recombined as Mortoniceras (Mortoniceras) nodosocostatum'
- 'Pervinquieria romeri is recombined as Mortoniceras (Mortoniceras) romeri'
- 'Pervinquieria salebrosa belongs to Pervinquieria' according to van Hoepen 1942
- 'Pervinquieria salebrosa is a subjective synonym of Mortoniceras (Mortoniceras) evolutum'
- 'Phylloceras belongs to Phylloceratidae'
- 'Pseudaspidoceras curvicostatum belongs to Pseudaspidoceras'
- 'Pseudotissotia (Choffaticeras) massipiana is recombined as Choffaticeras (Leoniceras) massipianum'
- 'Pseudouhligella was reranked as Desmoceras (Pseudouhligella) and belongs to Desmoceras'
- 'Pulchellia gibbosula is recombined as Hoplitoides gibbosulus'
- 'Pulchellia perovalis is recombined as Neoptychites perovalis'
- 'Reesideoceras was reranked as Forresteria (Reesideoceras) and belongs to Forresteria'
- 'Reesideoceras camerounense is recombined as Forresteria (Reesideoceras) camerounensis'
- 'Romaniceras uchauxiense belongs to Romaniceras' according to Collignon 1939
- 'Romaniceras uchauxiense belongs to Romaniceras'
- 'Schloenbachia bravoensis belongs to Schloenbachia' according to Böse 1910
- 'Schloenbachia bravoensis is recombined as Oxytropidoceras (Oxytropidoceras) bravoense'
- 'Schloenbachia elobiensis is recombined as Elobiceras elobiensis'
- 'Schloenbachia kiliani belongs to Schloenbachia' according to Lasswitz 1904
- 'Schloenbachia kiliani is recombined as Mortoniceras (Mortoniceras) kiliani'
- 'Schloenbachia quattuornodosa is recombined as Texanites quattuornodosus'
- 'Schloenbachia quattuornodosa belongs to Schloenbachia' according to Lasswitz 1904
- 'Schloenbachia wintoni is recombined as Mortoniceras (Mortoniceras) wintoni'
- 'Schloenbachiinae belongs to Schloenbachiidae'
- 'Stoliczkaia dispar africana belongs to Stoliczkaia dispar' according to Pervinquière 1907
- 'Stoliczkaia dispar africana is recombined as Stoliczkaia africana'
- 'Subschloenbachia depressa is recombined as Mortoniceras (Durnovarites) depressum'
- 'Subschloenbachia evoluta is recombined as Mortoniceras (Mortoniceras) evolutum'
- 'Subschloenbachia gregoryi is recombined as Mortoniceras (Angolaites) gregoryi'
- 'Subschloenbachia pricei is recombined as Mortoniceras (Mortoniceras) pricei'
- 'Subschloenbachia quadrata belongs to Subschloenbachia' according to Spath 1922
- 'Subschloenbachia quadrata is recombined as Mortoniceras (Durnovarites) quadratum'
- 'Subschloenbachia subrotunda is recombined as Mortoniceras (Mortoniceras) subrotundum'
- 'Thomasites jordani is a subjective synonym of Gombeoceras gongilense'
- 'Tissotia awguensis belongs to Tissotia'
- 'Tissotia latelobata belongs to Tissotia'
- 'Tissotia polygona belongs to Tissotia'
- 'Turrilites belongs to Turrilitidae'
- 'Turrilites scheuchzerianus is recombined as Turrilites (Euturrilites) scheuchzerianus'
- 'Vascoceras (Paracanthoceras) chevalieri is recombined as Paravascoceras chevalieri'
- 'Vascoceras gongilensis is recombined as Gombeoceras gongilense'
- 'Watinoceras reesidei belongs to Watinoceras'