Opinions from V.E. Benavides-Caceres 1956
- 'Acanthoceras belongs to Acanthoceratidae'
- 'Acanthoceras (Prionotropis) alluaudi is recombined as Barroisiceras (Forresteria) alluaudi'
- 'Acanthoceras chasca belongs to Acanthoceras'
- 'Acanthoceras pollocense belongs to Acanthoceras'
- 'Acanthoceras pseudolyelli belongs to Acanthoceras' according to Parona and Bonarelli 1896
- 'Acanthoceras pseudolyelli is recombined as Lyelliceras pseudolyelli'
- 'Acanthoceras sangalense belongs to Acanthoceras'
- 'Ammonites carbonarius belongs to Ammonites' according to Gabb 1877
- 'Ammonites carbonarius is recombined as Oxytropidoceras carbonarium'
- 'Ammonites fourneli belongs to Ammonites' according to Bayle 1849
- 'Ammonites fourneli is recombined as Buchiceras fourneli' according to Bayle 1878
- 'Ammonites fourneli is recombined as Tissotia fourneli'
- 'Ammonites gaudama is recombined as Desmophyllites gaudama'
- 'Ammonites haberfellneri belongs to Ammonites' according to von Hauer 1866
- 'Ammonites haberfellneri is recombined as Barroisiceras (Barroisiceras) haberfellneri'
- 'Ammonites latidorsatus is recombined as Desmoceras latidorsatum'
- 'Ammonites monile belongs to Ammonites' according to Sowerby 1836
- 'Ammonites monile is recombined as Douvilleiceras monile'
- 'Ammonites nodosoides is recombined as Mammites nodosoides'
- 'Ammonites ollonensis belongs to Ammonites' according to Gabb 1877
- 'Ammonites ollonensis is recombined as Knemiceras ollonense'
- 'Ammonites peruvianus is recombined as Oxytropidoceras peruvianum'
- 'Ammonites peruvianus belongs to Ammonites' according to von Buch 1839
- 'Ammonites syriacus is recombined as Knemiceras syriacum'
- 'Ancyloceras blancheti belongs to Ancyloceras' according to Pictet and Campiche 1861
- 'Ancyloceras blancheti is recombined as Protanisoceras blancheti'
- 'Baculites belongs to Baculitidae'
- 'Barroisiceras belongs to Tissotiidae'
- 'Barroisiceras (Barroisiceras) belongs to Barroisiceras'
- 'Barroisiceras (Barroisiceras) kayi belongs to Barroisiceras (Barroisiceras)'
- 'Barroisiceras (Forresteria) belongs to Barroisiceras'
- 'Barroisiceras (Forresteria) basseae belongs to Barroisiceras (Forresteria)'
- 'Barroisiceras brancoi is recombined as Barroisiceras (Solgerites) brancoi'
- 'Barroisiceras brancoi is recombined as Solgerites brancoi' according to Bassé 1947
- 'Barroisiceras brancoi belongs to Barroisiceras' according to Solger 1904
- 'Bostrychoceras belongs to Nostoceratidae'
- 'Brancoceras belongs to Dipoloceratidae'
- 'Brancoceras aegoceratoides belongs to Brancoceras' according to Steinmann 1881
- 'Brancoceras aegoceratoides belongs to Brancoceras'
- 'Broggiiceras belongs to Vascoceratidae'
- 'Broggiiceras humboldti belongs to Broggiiceras'
- 'Broggiiceras olssoni belongs to Broggiiceras'
- 'Buchiceras bilobatum belongs to Buchiceras' according to Hyatt 1875
- 'Buchiceras bilobatum belongs to Buchiceras'
- 'Coilopoceras belongs to Coilopoceratidae'
- 'Coilopoceras jenksi belongs to Coilopoceras'
- 'Coilopoceras newelli belongs to Coilopoceras'
- 'Desmoceras belongs to Desmoceratidae'
- 'Dipoloceras belongs to Dipoloceratidae'
- 'Douvilleiceras belongs to Douvilleiceratidae'
- 'Enallaster belongs to Spatangoidea'
- 'Engonoceras belongs to Engonoceratidae'
- 'Forbesiceras belongs to Schloenbachiidae'
- 'Glottoceras attenuatum is recombined as Knemiceras attenuatum'
- 'Heterotissotia belongs to Tissotiidae'
- 'Heterotissotia bucheri belongs to Heterotissotia'
- 'Heterotissotia peroni belongs to Heterotissotia'
- 'Heterotissotia peroni belongs to Heterotissotia' according to Lissón 1908
- 'Hoplitoides belongs to Coilopoceratidae'
- 'Hoplitoides inca belongs to Hoplitoides'
- 'Knemiceras gabbi belongs to Knemiceras' according to Hyatt 1903
- 'Knemiceras ovale belongs to Knemiceras'
- 'Knemiceras raimondii belongs to Knemiceras' according to Lissón 1908
- 'Knemiceras raimondii belongs to Knemiceras'
- 'Knemiceras tetranodosum belongs to Knemiceras' according to Lissón 1925
- 'Knemiceras tetranodosum is recombined as Parengonoceras tetranodosum'
- 'Knemiceras triangulare belongs to Knemiceras'
- 'Knemiceras ziczag belongs to Knemiceras' according to Breistroffer 1952
- 'Knemiceras ziczag belongs to Knemiceras'
- 'Lenticeras belongs to Lenticeratidae'
- 'Lenticeras baltae belongs to Lenticeras' according to Lissón 1908
- 'Lenticeras baltae is corrected as Lenticeras baltai and belongs to Lenticeras'
- 'Lenticeratidae belongs to Ammonoidea'
- 'Lissoniceras belongs to Paracenoceratidae'
- 'Lyelliceras belongs to Lyelliceratidae'
- 'Lyelliceras ulrichi belongs to Lyelliceras' according to Knechtel 1947
- 'Lyelliceras ulrichi belongs to Lyelliceras'
- 'Mammites belongs to Mammitidae'
- 'Nautilus triangularis is corrected as Nautilus mermeti and belongs to Nautilus' according to Coquand 1862
- 'Nautilus triangularis is recombined as Lissoniceras mermeti'
- 'Neolobites belongs to Ammonoidea'
- 'Neolobites kummeli belongs to Neolobites'
- 'Oxytropidoceras belongs to Dipoloceratidae'
- 'Oxytropidoceras douglasi belongs to Oxytropidoceras' according to Knechtel 1947
- 'Oxytropidoceras douglasi belongs to Oxytropidoceras'
- 'Oxytropidoceras venezolanum is recombined as Venezoliceras venezolanum'
- 'Oxytropidoceras venezolanum belongs to Oxytropidoceras' according to Stieler 1920
- 'Paracenoceratidae belongs to Nautilida'
- 'Parahoplites belongs to Parahoplitidae'
- 'Parahoplites inti belongs to Parahoplites'
- 'Parahoplites nicholsoni belongs to Parahoplites'
- 'Parahoplites quilla belongs to Parahoplites'
- 'Paraturrilites belongs to Turrilitidae'
- 'Parengonoceras belongs to Engonoceratidae'
- 'Parengonoceras champaraense belongs to Parengonoceras'
- 'Parengonoceras haasi belongs to Parengonoceras'
- 'Peroniceratidae belongs to Ammonoidea'
- 'Placenticeras guadaloupaeforme belongs to Placenticeras' according to Sommermeier 1910
- 'Placenticeras guadaloupaeforme is recombined as Parengonoceras guadaloupaeforme'
- 'Placenticeras pernodosum belongs to Placenticeras' according to Sommermeier 1910
- 'Placenticeras pernodosum is recombined as Parengonoceras pernodosum'
- 'Prolyelliceras belongs to Lyelliceratidae'
- 'Prolyelliceras peruvianum belongs to Prolyelliceras' according to Spath 1930
- 'Prolyelliceras peruvianum belongs to Prolyelliceras'
- 'Protanisoceras belongs to Anisoceratidae'
- 'Pseudaspidoceras is corrected as Pseudoaspidoceras and belongs to Mammitidae'
- 'Pseudaspidoceras reesidei belongs to Pseudaspidoceras'
- 'Pseudoaspidoceras reesidei belongs to Pseudoaspidoceras'
- 'Sharpeiceras belongs to Acanthoceratidae'
- 'Solgerites was reranked as Barroisiceras (Solgerites) and belongs to Barroisiceras'
- 'Sphaeroceras broggianus is recombined as Valanginites broggii'
- 'Texanites belongs to Peroniceratidae'
- 'Texanites hourcqi belongs to Texanites' according to Collignon 1948
- 'Texanites hourcqi belongs to Texanites'
- 'Thomasites belongs to Vascoceratidae'
- 'Thomasites fischeri belongs to Thomasites'
- 'Tissotia belongs to Tissotiidae'
- 'Tissotia halli belongs to Tissotia' according to Knechtel 1947
- 'Tissotia halli belongs to Tissotia'
- 'Tissotia hedbergi belongs to Tissotia'
- 'Tissotia steinmanni belongs to Tissotia' according to Lissón 1908
- 'Tissotia steinmanni belongs to Tissotia'
- 'Turrilites lewesiensis is recombined as Paraturrilites lewesiensis'
- 'Turrilites lewesiensis belongs to Turrilites' according to Spath 1926
- 'Valanginites belongs to Olcostephanidae'
- 'Vascoceras belongs to Vascoceratidae'
- 'Vascoceras silvanensis belongs to Vascoceras' according to Choffat 1898
- 'Vascoceras silvanensis is corrected as Vascoceras silvanense and belongs to Vascoceras'
- 'Venezoliceras belongs to Dipoloceratidae'
- 'Venezoliceras harrisoni belongs to Venezoliceras'