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Fossil collection records
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Classification of Mawby 1965
G. †
Sansanosmilus
Kretzoi 1929
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†
Sansanosmilus osborni
Merriam 1919
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Sansanosmilus whitfordi
Barbour and Cook 1915
G. †
Ischyrosmilus
Merriam 1918
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Ischyrosmilus johnstoni
Mawby 1965