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Google Analytics Dashboard for Pachydiscus (Pachydiscus) hornbyense Jones, 1963, and P. (P.) catarinae (Anderson & Hanna, 1935) (Cretaceous, Campanian; Ammonoidea), Pacific Realm marker fossils in the Western Interior Seaway of North America

Pachydiscus (Pachydiscus) hornbyense Jones, 1963, and P. (P.) catarinae (Anderson & Hanna, 1935) (Cretaceous, Campanian; Ammonoidea), Pacific Realm marker fossils in the Western Interior Seaway of North America

URI: https://pubs.usgs.gov/publication/70073920

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