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Fossil collection records
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Classification of Stock 1938
Fm. †
Mixodectidae
Cope 1883
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G. †
Microsyops
Leidy 1872
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†
Microsyops kratos
Stock 1938
Fm.
Tarsiidae
Gray 1825
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G. †
Yumanius
Stock 1938
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†
Yumanius woodringi
Stock 1938