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2 Specimen Results
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Individual/Organization:
Stewart, W.D.
FHSM IP-574
Prionocyclus hyatti
(Stanton, 1894)
Formation:
Carlile
Period(Early):
Cretaceous
FHSM VP-4376
Ptychodus
(Agassiz, 1837)
Formation:
Greenhorn
Period(Early):
Cretaceous
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