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Temporal range: Late Cretaceous, 83 Ma
Atlantochelys humerus.jpg
First discovered part of the only known bone
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Clade: Americhelydia
Family: Protostegidae
Genus: Atlantochelys
Type species
Atlantochelys mortoni
(Agassiz, 1849)

Atlantochelys is an extinct genus of sea turtle from the Upper Cretaceous of New Jersey. For 163 years, only a partial humerus was known, but the second part of the same bone was found in 2012.[1][2][3]


  1. ^ Parris, D., Schein, J., Daeschler, E., Gilmore, E., Poole, J., Pellegrini, R. Two halves make a holotype: two hundred years between discoveries. Proceedings of the Academy of Natural Sciences of Philadelphia. 163. ISSN 0097-3157.
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