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FHSM VP-15532
Ptychodus mortoni
(Agassiz, 1843)
Formation:
Niobrara
Period(Early):
Cretaceous
FHSM VP-16585
Ptychodus
(Agassiz, 1837)
Formation:
Niobrara
Period(Early):
Cretaceous
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Chordata (2)
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Chondrichthyes (2)
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Ptychodontidae (2)
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Ptychodus (2)
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Everhart, M.J. (2)
Period
Cretaceous (2)
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Upper (2)
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Santonian (2)
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Niobrara (2)
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Smoky Hill (2)
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