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2 Specimen Results
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Class:
Crinoidea
Period:
Mississippian
FHSM IP-1523
Crinoidea (Miller, 1821)
Formation:
Keokuk
Period(Early):
Mississippian
FHSM IP-1533
Crinoidea (Miller, 1821)
Formation:
Keokuk
Period(Early):
Mississippian
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Echinodermata (2)
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Marak, J.H. (1)
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Mississippian (2)
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