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An Early Pleistocene Vertebrate Fauna from Frederick, Oklahoma
Grayson E. Meade
The Journal of Geology
Vol. 61, No. 5 (Sep., 1953), pp. 452-460
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/30079696
Page Count: 10
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The vertebrate fauna from deposits at the Holloman gravel pit, Frederick, Oklahoma, is described and compared with other Pleistocene faunas. The Frederick fauna lacks the early Pleistocene (Nebraskan) genera Nannippus, Hippotigris, Borophagus, and Rhynchotherium but contains Equus and Archidiskodon, which first appear in North America at this time, and Stegomastodon and Gigantocamelus, which are not known to survive into middle Pleistocene Kansan time. This fauna indicates an Aftonian age for the deposit.
The Journal of Geology © 1953 The University of Chicago Press