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Atlas
All Species
Geology
Mollusca
Gastropoda
Trochida
Trochidae
Atira
Atira
Phylum:
Mollusca
Class:
Gastropoda
Order:
Trochida
Family:
Trochidae
Genus:
Atira
Atira
Species present in the Cretaceous of the West Coast of the United States
Atira ornatissima
Atira popenoei
