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Temporal range: Late Cretaceous, 83 Ma
Chelosphargis advena type.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Family: Protostegidae
Genus: Chelosphargis
Zangerl, 1953
Type species
Protostega advena
(Hay, 1908)
  • Chelosphargis advena (Hay, 1908)

Chelosphargis is an extinct genus of sea turtle from Upper Cretaceous of Alabama. Only one species has been described, Chelosphargis advena.[1]


  1. ^ Zangerl, R., 1953, The Vertebrate Fauna of the Selma Formation of Alabama. Part III. The Turtles of the family Protostegidae. Part IV. The Turtles of the family Toxochelydiae. Fieldiana: Geology Memoirs v. 3, n. 3 and 4, p. 57-276.

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