Classification of the genus Treptoceras

G. †Treptoceras Flower 1942
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Treptoceras duseri Hall and Whitfield 1875
Treptoceras fosteri Miller 1875
Treptoceras transversum Miller 1875
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Invalid names: Orthoceras hindei James 1878 [synonym]
Treptoceras yokoyamai Kobayashi 1927