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Atlas
All Species
Geology
Chordata
Sauropsida
Plesiosauria
Pliosauridae
Pliosauridae
Phylum:
Chordata
Class:
Sauropsida
Order:
Plesiosauria
Family:
Pliosauridae
Genera of Pliosauridae present in the Cretaceous of the Western Interior Seaway
Megacephalosaurus
