Cyrtura information

Cyrtura; Temporal range: Tithonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Pantestudines
Clade:	Testudinata
Clade:	†Thalassochelydia
Genus:	†Cyrtura; Jaekel, 1904
Species:	†C. temnospondyla
Binomial name
	†Cyrtura temnospondyla; Jaekel, 1904

Cyrtura is a dubious genus of extinct Testudinata from the Late Jurassic (early Tithonian) of the Solnhofen Formation of Bavaria, Germany. Cyrtura was originally described as a temnospondyl amphibian by Otto Jaekel in 1904 on the basis of MNB 1890, the distal portion of a tail with 14 caudal vertebrae. Most authors overlooked the genus, although those who mentioned Cyrtura dismissed it as either undiagnostic or referable to Testudines rather than Temnospondyli. Warren and Hutchinson (1983) rejected the temnospondyl classification of the genus based on examination of a cast of the holotype, and subsequent studies showed that Cyrtura is actually a marine turtle, although the lack of diagnostic characters renders it a nomen dubium.^[1]^[2]^[3]

^ Jaekel, O., 1904. Die Bildung der ersten Halswirbel und die Wirbelbildung im allgemeinen. Zeitschrift der Dtsch. Geol. Gesellschaft 56, 109–119.
^ Anquetin, J.; Milner, A.R. (2015). "A cautionary tail: Cyrtura temnospondyla Jaekel, 1904, an enigmatic vertebrate specimen from the Late Jurassic Solnhofen Limestone". Comptes Rendus Palevol. 14 (6–7): 549–553. Bibcode:2015CRPal..14..549A. doi:10.1016/j.crpv.2014.10.007. hdl:10141/604394.
^ Anquetin; Puntener; Joyce (2017). "A review of the fossil record of turtles of the clade Thalassochelydia". Bulletin of the Peabody Museum of Natural History. 58 (2): 317–369. doi:10.3374/014.058.0205. S2CID 31091127.

[1] Jaekel, O., 1904. Die Bildung der ersten Halswirbel und die Wirbelbildung im allgemeinen. Zeitschrift der Dtsch. Geol. Gesellschaft 56, 109–119.

[2] Anquetin, J.; Milner, A.R. (2015). "A cautionary tail: Cyrtura temnospondyla Jaekel, 1904, an enigmatic vertebrate specimen from the Late Jurassic Solnhofen Limestone". Comptes Rendus Palevol. 14 (6–7): 549–553. Bibcode:2015CRPal..14..549A. doi:10.1016/j.crpv.2014.10.007. hdl:10141/604394.

[3] Anquetin; Puntener; Joyce (2017). "A review of the fossil record of turtles of the clade Thalassochelydia". Bulletin of the Peabody Museum of Natural History. 58 (2): 317–369. doi:10.3374/014.058.0205. S2CID 31091127.

Cyrtura information

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