Haichemys

Haichemys is an extinct genus of turtles that lived during the Late Cretaceous period in what is now Mongolia. It was first described in 2006 and placed into the family Haichemydidae, of which it is the only genus.^[1][2][3] The validity of Haichemys has been questioned, with a study published in 2013 finding it likely that all known fossils of it actually represent hatchlings of Mongolemys elegans, though this cannot be conclusively proven until specimens preserving both the skull and shell are found.^[4]

Haichemys Temporal range: Late Cretaceous (Maastrichtian), ~70 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Superfamily:	Testudinoidea
Family:	†Haichemydidae Sukhanov and Narmandakh, 2006
Genus:	†Haichemys Sukhanov and Narmandakh, 2006
Type species
†Haichemys ulensis Sukhanov and Narmandakh, 2006

Haichemys are suggested to have had duropagous diet from surrounding carbonaceous claystone found in swamps and lakes.

References

1. Okada, H; Mateer, N.J. (2000), Cretaceous Environments of Asia, Elsevier, p. 71, ISBN 9780080530093
2. DANILOV, I. Gravemys Sukhanov and Narmandakh, 1983 (Testudinoidea: Lindholmemydidae) from the Late Cretaceous of Asia: new data. PaleoBios, v. 23, p. 9–19, 2003 Artigo científico em inglês
3. Sukhanov, V.B.; Narmandakh, P. (2006). "New taxa of Mesozoic turtles from Mongolia". Fossil Turtle Research. 1: 119–127.
4. Cadena, Edwin A.; Ksepka, Daniel T.; Norell, Mark A. (2013-01-25). "New material of Mongolemys elegans Khosatzky and Mlynarski, 1971 (Testudines: Lindholmemydidae), from the Late Cretaceous of Mongolia with Comments on Bone Histology and Phylogeny". American Museum Novitates. 3766 (3766): 1–28. doi:10.1206/3766.2. ISSN 0003-0082.