Plesiochelys

Plesiochelys Temporal range: Jurassic, Kimmeridgian–Tithonian [1] PreꞒ Ꞓ O S D C P T J K Pg N
Holotype shell of Plesiochelys. The shell is mounted upside-down
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Pantestudines
Clade:	Testudinata
Clade:	† Thalassochelydia
Family:	† Plesiochelyidae
Genus:	† Plesiochelys Rütimeyer, 1873
Type species
†Plesiochelys etalloni (Pictet & Humbert, 1857)
Other species
†Plesiochelys bigleri Püntener, Anquetin & Billon-Bruyat, 2017 [2]
Synonyms [1]
Synonyms of P. etalloni: Emys etalloniPictet & Humbert, 1857 Plesiochelys solodurensisRütimeyer, 1873 Plesiochelys sanctaeverenaeRütimeyer, 1873 Plesiochelys langiiRütimeyer, 1873

Plesiochelys ("near turtle") is a genus of late Jurassic European and Asian turtle. The type species is Plesiochelys etalloni. ^[1]

Fossil records have discovered Plesiochelys bigleri and Plesiochelys etalloni from the Kimmeridge Clay of England and outside the Swiss and French Jura Mountains. ^[3]

A recent study ^[4] placed Plesiochelys as an Angolachelonia and outside Testudines.

References

1. Anquetin, J. R. M.; Deschamps, S.; Claude, J. (2014). "The rediscovery and redescription of the holotype of the Late Jurassic turtle Plesiochelys etalloni". PeerJ. 2 e258. doi: 10.7717/peerj.258 . PMC   3932733 . PMID   24688842.
2. Christian Püntener; Jérémy Anquetin; Jean-Paul Billon-Bruyat (2017). "The comparative osteology of Plesiochelys bigleri n. sp., a new coastal marine turtle from the Late Jurassic of Porrentruy (Switzerland)". PeerJ. 5 e3482. doi: 10.7717/peerj.3482 . PMC   5493033 . PMID   28674653.
3. Anquetin, J.; Chapman, S. D. (2016). "First report of Plesiochelys etalloni and Tropidemys langii from the Late Jurassic of the UK and the palaeobiogeography of plesiochelyid turtles". Royal Society Open Science. 3 (1): e1-2. Bibcode:2016RSOS....350470A. doi:10.1098/rsos.150470. PMC   4736927 . PMID   26909172.
4. Evers, S. W., & Benson, R. B. (2019). A new phylogenetic hypothesis of turtles with implications for the timing and number of evolutionary transitions to marine lifestyles in the group. Palaeontology, 62(1), 93–134.

Fossil of Plesiochelys

Sources

• Gaffney, Eugene S. "A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum Novitates; no. 2574." (1975).

External links

• "Plesiochelys". The Encyclopedia of Life .