6 Specimen Results

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Individual/Organization:Hamm, S.A. Order:

FHSM VP-396
Ptychodus rugosus (Dixon, 1850)
Formation: Niobrara
Period(Early): Cretaceous

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FHSM VP-2073
Ptychodus rugosus (Dixon, 1850)
Formation: Niobrara
Period(Early): Cretaceous

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FHSM VP-16684
Ptychodus mortoni (Agassiz, 1843)
Formation: Niobrara
Period(Early): Cretaceous

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FHSM VP-19170
Ptychodus anonymus (Williston, 1900)
Formation: Greenhorn
Period(Early): Cretaceous

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FHSM VP-19632
Ptychodus latissimus (Agassiz, 1843)
Formation: Codell Sandstone
Period(Early): Cretaceous

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FHSM VP-19875
Ptychodus (Agassiz, 1837)

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