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Atlas
All Species
Geology
Mollusca
Cephalopoda
Pseudorthocerida
Spyroceratidae
Spyroceratidae
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Pseudorthocerida
Family:
Spyroceratidae
Genera of Spyroceratidae present in the Pennsylvanian of the American Midcontinent
Euloxoceras
