Opinions from C. Meister et al. 1994
- 'Acanthoceratidae belongs to Acanthocerataceae'
- 'Acanthoceratinae belongs to Acanthoceratidae'
- 'Ammonites cephalotus is recombined as Neoptychites cephalotus'
- 'Ammonites conciliatus belongs to Ammonites' according to Stoliczka 1865
- 'Ammonites conciliatus is recombined as Mammites conciliatum'
- 'Ammonites vibrayeanus is recombined as Neolobites vibrayeanus'
- 'Bauchioceras (Wrightoceras) wallsi is recombined as Thomasites wallsi'
- 'Choffaticeras belongs to Pseudotissotinae'
- 'Engonoceratidae belongs to Hoplitaceae'
- 'Hoplitoides nigeriensis is recombined as Thomasites nigeriensis'
- 'Mammites belongs to Mammitinae'
- 'Mammitidae was reranked as the subfamily Mammitinae and belongs to Acanthoceratidae'
- 'Neolobites belongs to Engonoceratidae'
- 'Neolobites bedoti is recombined as Metengonoceras bedoti' according to Duplicate 1990
- 'Neolobites brancai belongs to Neolobites' according to Eck 1908
- 'Neolobites brancai is recombined as Neolobites vibrayeanus brancai'
- 'Neolobites isidis belongs to Neolobites' according to Greco 1915
- 'Neolobites isidis is a subjective synonym of Neolobites brancai'
- 'Neolobites schweinfurthi belongs to Neolobites' according to Eck 1914
- 'Neolobites schweinfurthi is a subjective synonym of Neolobites brancai'
- 'Neoptychites belongs to Vascoceratinae'
- 'Nigericeras belongs to Vascoceratinae'
- 'Nigericeras costatum is a subjective synonym of Vascoceras glabrum'
- 'Nigericeras glabrum is recombined as Vascoceras glabrum'
- 'Nigericeras jacqueti belongs to Nigericeras'
- 'Pseudotissotinae belongs to Vascoceratidae'
- 'Thomasites belongs to Pseudotissotinae'
- 'Thomelites belongs to Acanthoceratinae'
- 'Thomelites tenereensis belongs to Thomelites'
- 'Vascoceras belongs to Vascoceratinae'
- 'Vascoceratidae belongs to Acanthocerataceae'
- 'Vascoceratinae belongs to Vascoceratidae'