Classification of the genus Prototoceras
G. †Prototoceras Spath 1930
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†Prototoceras anfuense Zhao et al. 1978
†Prototoceras complanatum Zhao et al. 1978
†Prototoceras compressum Bando 1979
†Prototoceras diluterotalum Qin 1986
†Prototoceras discoidale Ruzhencev 1963
†Prototoceras fedoroffi Arthaber 1900
†Prototoceras fengchengense Zhao et al. 1978
†Prototoceras hunanense Xu 1977
†Prototoceras inflatum Zhao et al. 1978
†Prototoceras intermedium Abich 1878
†Prototoceras longilobatum Zhao et al. 1978
†Prototoceras multidenticulatum Zhao et al. 1978
†Prototoceras pachygyrum Zhao et al. 1978
†Prototoceras parallelum Ruzhentsev 1959
†Prototoceras pessoides Abich 1878
†Prototoceras plicatum Chao and Liang 1965
†Prototoceras pulchriforme Qin 1986
†Prototoceras raddei Arthaber 1900
†Prototoceras simplex Qin 1986
†Prototoceras tropitum Abich 1878
†Prototoceras venustum Zhao et al. 1978
†Prototoceras xiangulingense Chao and Liang 1965