Palaeochersis

Palaeochersis Temporal range: Late Triassic, ~227–213  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Carapace from the holotype
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Pantestudines
Clade:	Testudinata
Clade:	Rhaptochelydia
Family:	† Australochelyidae
Genus:	† Palaeochersis Rougier, de la Fuente & Arcucci, 1995
Species:	†P. talampayensis
Binomial name
†Palaeochersis talampayensis Rougier, de la Fuente & Arcucci, 1995

Palaeochersis is an extinct genus of rhaptochelydian turtle ^[1] from the Los Colorados Formation of Argentina. ^[2] It is known from one species, Palaeochersis talampayensis. ^[3]

Discovery and naming

Palaeochersis talampayensis is known from three specimens: PULR 68 (holotype), a skull and postcranium. PULR 69, a right tarsus and pes, and PULR 72, a skull. The three specimens were each collected together in 1992 ^[2] within the Los Colorados Formation, Argentina. ^{[3] [4]}

Palaeochersis talampayensis was then named and described by Rougier, de la Fuente & Arcucci (1995). ^[3]

Classification

Palaeochersis was part of the Australochelyidae, being the sister taxon to Australochelys . ^{[1] [5]}

References

1. Arcucci, A.B.; Marsicano, C.A.; Caselli, A.T. (2004), "Tetrapod association and palaeoenvironment of the Los Colorados Formation (Argentina): a significant sample from western Gondwana at the end of the Triassic", Geobios , 37 (5): 557–568, Bibcode:2004Geobi..37..557A, doi:10.1016/j.geobios.2003.04.008, hdl: 11336/97772 , retrieved 2019-03-28
2. 2 km NE of La Esquina at Fossilworks.org
3. Rougier, Guillermo W.; de la Fuente, Marcelo S.; Arcucci, Andrea B. (1995-05-12). "Late Triassic Turtles from South America" . Science. 268 (5212): 855–858. Bibcode:1995Sci...268..855R. doi:10.1126/science.268.5212.855. ISSN   0036-8075. PMID   17792180.
4. Szczygielski, Tomasz; Dróżdż, Dawid; Chanthasit, Phornphen; Manitkoon, Sita; Ditbanjong, Pitaksit (2025-03-19). "The Triassic turtle of Thailand – revision of 'Proganochelys' ruchae". PLOS ONE. 20 (3): e0316338. Bibcode:2025PLoSO..2016338S. doi: 10.1371/journal.pone.0316338 . ISSN   1932-6203. PMC   12279380 .
5. Sterli, Juliana; de la Fuente, Marcelo; Rougier, Guillermo W. (2007-11-07). "Anatomy and Relationships of Palaeochersis talampayensis, a Late Triassic Turtle from Argentina" . Palaeontographica Abteilung A. 281 (1–3): 1–61. Bibcode:2007PalAA.281....1S. doi:10.1127/pala/281/2007/1. ISSN   0375-0442.