Classification of Hibbard 1970

G. †Leptodontomys Shotwell 1956
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Leptodontomys oregonensis Hibbard 1970
G. †Nebraskomys Hibbard 1957
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Nebraskomys rexroadensis Hibbard 1970
G. †Promimomys Kretzoi 1955
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Promimomys mimus Shotwell 1956
Invalid names: Prosomys Shotwell 1956 [synonym]