Classification of Wright and Kennedy 1990
Subg. †Calycoceras (Proeucalycoceras) Thomel 1969
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†Calycoceras (Proeucalycoceras) picteti Wright and Kennedy 1990
†Acanthoceras rhotomagense Brongniart 1822
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Invalid names: Ammonites cenomanensis d'Orbigny 1850 [synonym]
Subg. †Calycoceras (Gentoniceras) Thomel 1972
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†Calycoceras (Gentoniceras) gentoni Brongniart 1822
†Calycoceras (Gentoniceras) subgentoni Spath 1926