Jump to content

Naomichelys

From Wikipedia, the free encyclopedia

Naomichelys
Temporal range: Early Cretaceous Aptian–Campanian
Fossil carapace of N. speciosa, Field Museum of Natural History
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Pantestudines
Clade: Testudinata
Family: Helochelydridae
Genus: Naomichelys
Hay, 1908
Type species
Naomichelys speciosa
Hay, 1908

Naomichelys is an extinct genus of helochelydrid stem turtle known from the Cretaceous (Aptian-Campanian) of North America. It is the only member of the family known to be native to North America.

Distribution

[edit]

Naomichelys is known numerous remains from western North America, most notably the holotype partial shell from the Cloverly Formation of Montana and a complete skeleton from the Antlers Formation of Texas. Indetermiate remains are known extending up to the Campanian in the United States and Canada.[1] It is the only known North American member of Helochelydridae.[2][3]

Location

[edit]

After[1]

Taxonomy

[edit]

Naomichelys is a member of the family Helochelydridae, which is known from Late Jurassic to Late Cretaceous deposits in North America and Europe.

References

[edit]
  1. ^ a b Gentry, Andrew D.; Ebersole, Jun A. (2021-08-10). "The first occurrence of the stem turtle Naomichelys from the Late Cretaceous of eastern North America". Historical Biology. 34 (7): 1129–1136. doi:10.1080/08912963.2021.1962855. ISSN 0891-2963. S2CID 238677455.
  2. ^ Hay, O.P. 1908. The Fossil Turtles of North America. Carnegie Institute of Washington, Washington DC. https://doi.org/10.5962/bhl.title.1250
  3. ^ W. G. Joyce, J. Sterli, and S. D. Chapman. 2014. The skeletal morphology of the solemydid turtle Naomichelys speciosa from the Early Cretaceous of Texas. Journal of Paleontology 88(6):1257-1287