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2 Specimen Results
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Phylum:
Mollusca
Formation:
Decorah
FHSM IP-2174
Spiroceras
(Meek, 1876)
Formation:
Decorah
Period(Early):
Ordovician
FHSM IP-2179
Gastropoda (Cuvier, 1797)
Formation:
Decorah
Period(Early):
Ordovician
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Ammonitida (1)
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Cephalopoda (1)
Gastropoda (1)
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Spiroceratidae (1)
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Spiroceras (1)
has media
Has media (1)
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Holtzman, R. (2)
Period
Ordovician (2)
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Middle (1)
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Decorah (2)
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Goodhue (2)