Classification of Frebold 1967
G. †Paracaloceras Spath 1923
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†Paracaloceras coregonense Sowerby 1831
†Paracaloceras multicostatum Frebold 1967
Subg. †Psiloceras (Curviceras) Blind 1963
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†Psiloceras (Curviceras) columbiae Frebold 1967