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2 Specimen Results
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Individual/Organization:
Miller, H.W.
Individual/Organization:
Rolfs, M.E.
FHSM IP-1009
Spinaptychus sternbergi
(Fischer & Fay, 1953)
Formation:
Niobrara
Period(Early):
Cretaceous
FHSM IP-2210
Pseudoperna congesta
(Conrad, 1843)
Formation:
Niobrara
Period(Early):
Cretaceous
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Marak, J.H. (1)
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