Classification of the genus Nostoceras
G. †Nostoceras Hyatt 1894
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Subg. †Nostoceras (Nostoceras) Hyatt 1894
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†Nostoceras (Nostoceras) approximans Conrad 1855
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Invalid names: Nostoceras stantoni Hyatt 1894 [synonym]
†Nostoceras (Nostoceras) archiacianum d'Orbigny 1842
†Nostoceras (Nostoceras) budanyi Foldyna and Vasicek 1977
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Invalid names: Anaklinoceras kersianum Foldyna and Vasicek 1977 [synonym]
†Nostoceras (Nostoceras) ellipticum Kennedy 2000
†Nostoceras (Nostoceras) fisheri Brunnschweiler 1966
†Nostoceras (Nostoceras) helicinum Shumard 1861
†Nostoceras (Nostoceras) major Kennedy and Cobban 1993
†Nostoceras (Nostoceras) schloenbachi Favre 1869
†Nostoceras alternatus Tuomey 1854
†Nostoceras arkanasanum Kennedy and Cobban 1993
†Nostoceras colubriformis Stephenson 1941
†Nostoceras danei Kennedy and Cobban 1993
†Nostoceras excelsus Anderson 1958
†Nostoceras hetonaiense Matsumoto 1977
†Nostoceras hyatti Stephenson 1941
†Nostoceras kernense Anderson 1958
†Nostoceras larimerense Kennedy et al. 2000
†Nostoceras mariatheresianum Haas 1943
†Nostoceras mendryki Cobban 1974
†Nostoceras mexicanum Anderson 1958
†Nostoceras monotuberculatum Kennedy and Cobban 1993
†Nostoceras pauper Whitfield 1892
†Nostoceras pleurocostatum Kennedy and Cobban 1993
†Nostoceras pulcher Kennedy and Cobban 1993
†Nostoceras saundersorum Stephenson 1941
†Nostoceras splendidum Shumard 1861
†Nostoceras sternbergi Anderson and Hanna 1935