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Callognathus
e8da530b091f23b1bffe1f379195c02d
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Callognathus Newberry, 1890
Source
Rank
genus
Names
1
species:4853009
Monogr. U. S. geol. Surv. , 16, 69.
Classification
Chordata
Callognathus Newberry, 1890