Opinions from F. Barroso-Barcenilla 2004
- 'Acanthoceras belongs to Acanthoceratinae'
- 'Alternacanthoceras is a subjective synonym of Acanthoceras'
- 'Acanthoceratidae belongs to Acanthocerataceae'
- 'Acanthoceratinae belongs to Acanthoceratidae'
- 'Ammonites euomphalus is recombined as Euomphaloceras euomphalum'
- 'Ammonites geslinianum is recombined as Metoicoceras geslinianum'
- 'Ammonites navicularis is recombined as Calycoceras (Calycoceras) naviculare'
- 'Ammonites nodosoides is recombined as Mammites nodosoides'
- 'Ammonites ornatissimum is recombined as Romaniceras (Yubariceras) ornatissimum'
- 'Ammonites reveliereanus is recombined as Spathites (Jeanrogericeras) reveliereanus'
- 'Ammonites rhotomagensis is recombined as Acanthoceras rhotomagense'
- 'Ammonites turoniensis is recombined as Kamerunoceras turoniense'
- 'Burroceras is a subjective synonym of Euomphaloceras'
- 'Calycoceras belongs to Acanthoceratinae'
- 'Calycoceras (Calycoceras) belongs to Calycoceras'
- 'Euomphaloceratinae belongs to Acanthoceratidae'
- 'Fallotites (Fallotites) belongs to Fallotites' according to Wiedmann 1960
- 'Fallotites (Fallotites) is a subjective synonym of Spathites (Jeanrogericeras)'
- 'Fallotites (Fallotites) robustus belongs to Fallotites (Fallotites)' according to Wiedmann 1960
- 'Fallotites (Fallotites) robustus is recombined as Spathites (Jeanrogericeras) robustus'
- 'Ingridella was reranked as Fallotites (Ingridella) and belongs to Fallotites' according to Wiedmann 1960
- 'Jeanrogericeras was reranked as Spathites (Jeanrogericeras) and belongs to Spathites'
- 'Kamerunoceras belongs to Euomphaloceratinae'
- 'Kanabiceras is a subjective synonym of Euomphaloceras'
- 'Mammites belongs to Mammitinae'
- 'Mammites subconciliatum obliqua belongs to Mammites subconciliatum' according to Karrenberg 1935
- 'Mammites subconciliatum obliqua is recombined as Spathites (Jeanrogericeras) obliquus'
- 'Mammitidae was reranked as the subfamily Mammitinae and belongs to Acanthoceratidae'
- 'Metacanthoplites is a subjective synonym of Acanthoceras'
- 'Metoicoceras belongs to Mammitinae'
- 'Metoicoceras muelleri belongs to Metoicoceras'
- 'Polyaspidoceras is a subjective synonym of Kamerunoceras'
- 'Romaniceras belongs to Euomphaloceratinae'
- 'Schindewolfites is a subjective synonym of Kamerunoceras'
- 'Schindewolfites ganuzai is recombined as Kamerunoceras ganuzai'
- 'Schluetericeras is a subjective synonym of Mammites'
- 'Schluetericeras laubei belongs to Schluetericeras' according to Hyatt 1903
- 'Schluetericeras laubei is a subjective synonym of Mammites nodosoides'
- 'Spathites belongs to Mammitinae'
- 'Vascoceras malladae belongs to Vascoceras' according to Fallot 1931
- 'Vascoceras malladae is recombined as Spathites (Ingridella) malladae'
- 'Vascoceras subconciliatum is recombined as Mammites subconciliatum' according to Karrenberg 1935
- 'Vascoceras subconciliatum is recombined as Spathites (Jeanrogericeras) subconciliatus'
- 'Yubariceras was reranked as Romaniceras (Yubariceras) and belongs to Romaniceras'
- 'Yubariceras yubarense is a subjective synonym of Romaniceras (Yubariceras) ornatissimum'