Classification of the genus Ormoceras
G. †Ormoceras Stokes 1840
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†Ormoceras bayfieldi Stokes 1840
†Ormoceras centrale Flower 1940
†Ormoceras champlainense Flower 1952
†Ormoceras dartoni Flower 1957
†Ormoceras ferecentricum Foerste. and Teichert 1930
†Ormoceras heckeri Teichert 1930
†Ormoceras kiaeri Sweet 1958
†Ormoceras neumani Flower 1957
†Ormoceras schohariae Flower 1940
Invalid names: Aluveroceras [synonym]