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Didymoceras

Didymoceras

Phylum: Mollusca
Class: Cephalopoda
Order: Ammonoidea
Family: Nostoceratidae
Genus: Didymoceras

Didymoceras Species present in the Cretaceous of the Western Interior Seaway

Didymoceras beecheri

Didymoceras beecheri

Didymoceras cheyennense

Didymoceras cheyennense

Didymoceras cochleatum

Didymoceras cochleatum

Didymoceras nebrascense

Didymoceras nebrascense

Didymoceras stevensoni

Didymoceras stevensoni