Opinions from D. H. Evans 2005
- 'Armenoceratidae belongs to Actinocerida'
- 'Bactrites sandbergeri is recombined as Bactroceras sandbergeri'
- 'Bactrites sandbergeri is recombined as Eobactrites sandbergeri' according to Schindewolf 1932
- 'Bactroceras belongs to Baltoceratidae'
- 'Bactroceras avus belongs to Bactroceras' according to G. Holm 1898
- 'Bactroceras guichiense belongs to Bactroceras' according to Ying 1989
- 'Bactroceras guichiense is a subjective synonym of Bactroceras angustisiphonatum'
- 'Bactroceras jingshanlingense belongs to Bactroceras' according to Zou 1987
- 'Bactroceras jingshanlingense is a subjective synonym of Bactroceras angustisiphonatum'
- 'Bactroceras latisiphonatum belongs to Bactroceras' according to Glenister 1952
- 'Bactroceras latisiphonatum is a subjective synonym of Bactroceras angustisiphonatum'
- 'Bactroceras wilsoni belongs to Bactroceras' according to Flower 1968
- 'Bactroceras wilsoni is a subjective synonym of Bactroceras angustisiphonatum'
- 'Baltoceras is a subjective synonym of Cochlioceras'
- 'Baltoceratidae belongs to Orthoceratoidea'
- 'Bathmoceras belongs to Bathmoceratidae'
- 'Bathmoceratidae belongs to Cyrtocerinina'
- 'Castelloceras belongs to Baltoceratidae'
- 'Castelloceras arennigense belongs to Castelloceras'
- 'Conoceras llanvirnense belongs to Conoceras' according to Roberts 1884
- 'Conoceras llanvirnense is recombined as Bathmoceras llanvirnense'
- 'Conothinoceras belongs to Eothinoceratidae' according to J. Y. Chen and C. Teichert 1987
- 'Cyclorangeroceras belongs to Rangeroceratidae'
- 'Cyclorangeroceras blakei belongs to Cyclorangeroceras'
- 'Cyrtocerinina belongs to Ellesmerocerida'
- 'Dideroceras belongs to Endoceratidae'
- 'Ellesmeroceratida is corrected as Ellesmerocerida and belongs to Nautiloidea'
- 'Endoceras angustisiphonatum belongs to Endoceras' according to RĂ¼diger 1891
- 'Endoceras angustisiphonatum is recombined as Bactroceras angustisiphonatum'
- 'Endoceras angustisiphonatum is recombined as Bactroceras angustisiphonatum' according to Holm 1898
- 'Endoceras wahlenbergi is recombined as Dideroceras wahlenbergi'
- 'Endoceratidae belongs to Endocerida'
- 'Eobactrites is a subjective synonym of Bactroceras'
- 'Eothinoceratidae belongs to Cyrtocerinina'
- 'Geisonoceratidae belongs to Orthocerida'
- 'Irianoceras antiquum is a subjective synonym of Bactroceras angustisiphonatum'
- 'Lituitidae belongs to Lituitida'
- 'Margaritoceras belongs to Eothinoceratidae' according to G. Cecioni and R. H. Flower 1985
- 'Michelinoceras belongs to Michelinoceratinae'
- 'Michelinoceratinae belongs to Orthoceratidae'
- 'Moridunoceras belongs to Troedssonellidae'
- 'Moridunoceras castelli belongs to Moridunoceras'
- 'Nautiloidea belongs to Cephalopoda'
- 'Nybyoceras belongs to Armenoceratidae'
- 'Orthoceras avelinii belongs to Orthoceras' according to Salter 1854
- 'Orthoceras avelinii is recombined as Michelinoceras avelinii'
- 'Orthoceras caereesiense belongs to Orthoceras' according to Hicks 1875
- 'Orthoceras caereesiense is a subjective synonym of Michelinoceras avelinii'
- 'Orthoceras complexum is recombined as Bathmoceras complexum' according to C. Teichert 1939
- 'Orthoceras eoum belongs to Orthoceras' according to Blake 1882
- 'Orthoceras eoum is a subjective synonym of Polymeres demetarum'
- 'Orthoceras festinans belongs to Orthoceras' according to Blake 1882
- 'Orthoceras festinans is recombined as Dideroceras festinans'
- 'Orthoceras sericeum is recombined as Saloceras sericeum'
- 'Orthocerataceae was reranked as the subclass Orthoceratoidea and belongs to Cephalopoda'
- 'Orthoceratidae belongs to Orthocerida'
- 'Orthocerida belongs to Orthoceratoidea'
- 'Polymeres belongs to Polymeridae'
- 'Polymeres demetarum belongs to Polymeres' according to Murchison 1839
- 'Protothinoceras belongs to Eothinoceratidae' according to J. Y. Chen and C. Flower 1987
- 'Pseudorthocerida belongs to Orthoceratoidea'
- 'Rangeroceras belongs to Rangeroceratidae'
- 'Rhynchorthoceras belongs to Sinoceratidae'
- 'Sacerdosoceras belongs to Eothinoceratidae'
- 'Sacerdosoceras promus belongs to Sacerdosoceras'
- 'Semiannuloceras belongs to Baltoceratidae'
- 'Semiannuloceras abbeyense belongs to Semiannuloceras'
- 'Strombolituites is corrected as Ancistroceras and belongs to Lituitidae'
- 'Tretoceras parvulum belongs to Tretoceras' according to J. Barrande 1868
- 'Tretoceras parvulum is a subjective synonym of Bactroceras sandbergeri'
- 'Troedssonellidae belongs to Dissidocerida'