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Formation:Graneros/Greenhorn Genus:Ptychodus

FHSM VP-14764
Ptychodus decurrens (Agassiz, 1839)
Formation: Graneros/Greenhorn
Period(Early): Cretaceous

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FHSM VP-14801
Ptychodus occidentalis (Leidy, 1868)
Formation: Graneros/Greenhorn
Period(Early): Cretaceous

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FHSM VP-14802
Ptychodus anonymus (Williston, 1900)
Formation: Graneros/Greenhorn
Period(Early): Cretaceous

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