Classification of Kennedy and Cobban 1988
Subor. †Ammonitina Hyatt 1889
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Superfm. †Acanthocerataceae de Grossouvre 1894
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Fm. †Acanthoceratidae Grossouvre 1894
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Subfm. †Euomphaloceratinae Cooper 1978
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G. †Romaniceras Spath 1923
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Subg. †Romaniceras (Obiraceras) Matsumoto 1975
Subg. †Romaniceras (Romaniceras) Spath 1923
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†Romaniceras (Romaniceras) mexicanum Jones 1938
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Invalid names: Romaniceras santaanaense Jones 1938 [synonym], Romaniceras toribioense Jones 1938 [synonym]