Classification of the genus Gyroptychius
G. †Gyroptychius M'Coy 1848
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†Gyroptychius agassizi Traill 1841
†Gyroptychius australis Young and Corter 1981
†Gyroptychius dolichotatus Jarvik 1985
†Gyroptychius elgae Vorobyeva 1977
†Gyroptychius groenlandicus Jarvik 1950
†Gyroptychius kiaeri Jarvik 1949
†Gyroptychius milleri Jarvik 1948
†Gyroptychius pauli Vorobyeva 1977
†Gyroptychius taylori Jessen 1968