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Atlas
All Species
Geology
Mollusca
Gastropoda
Orthogastropoda
Orthogastropoda
Phylum:
Mollusca
Class:
Gastropoda
Order:
Orthogastropoda
Families of Orthogastropoda present in the Pennsylvanian of the American Midcontinent
Naticopsidae
Neritopsidae
Phymatopleuridae
Portlockiellidae
Streptacididae
Stuorellidae
