Spitrasaurus information

Spitrasaurus; Temporal range: Tithonian; ~150–145 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Life restoration
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	†Sauropterygia
Order:	†Plesiosauria
Family:	†Cryptoclididae
Genus:	†Spitrasaurus; Knutsen, Druckenmiller & Hurum, 2012
Species
	†S. wensaasi Knutsen, Druckenmiller & Hurum, 2012 (type); †S. larseni Knutsen, Druckenmiller & Hurum, 2012;

Spitrasaurus is an extinct genus of cryptoclidid^[1] plesiosauroid plesiosaur known from the uppermost Jurassic of central Spitsbergen, Norway^[2] and likely also Kimmeridge, England.^[3] It is named after a syllabic abbreviation for Spitsbergen Travel.

The holotype of S. wensaasi is PMO 219 718 and consists of sixty articulated cervical vertebrae and skull material from a juvenile,^[2] and the holotype of S. larseni is SVB 1450 and also consists of cervical vertebrae.^[2]

A cervical vertebra, MANCH LI 5519c, was found in the Kimmeridge Clay Formation in England and was tentatively assigned to cf. Spitrasaurus in 2014 after being compared to Colymbosaurus megadeirus,^[3] while more possible Spitrasaurus vertebrae found at Kimmeridge reside within the collection of Steve Etches.

^ Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Reviews. 89 (1): 1–23. doi:10.1111/brv.12038. PMID 23581455. S2CID 19710180.
^ ^a ^b ^c Espen M. Knutsen; Patrick S. Druckenmiller; Jørn H. Hurum (2012). "Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen". Norwegian Journal of Geology. 92 (2–3): 187–212. ISSN 0029-196X.Low resolusion pdf High resolusion pdf
^ ^a ^b Benson, Roger B. J.; Bowdler, Timothy (2014-07-29). "Anatomy of Colymbosaurus megadeirus (Reptilia, Plesiosauria) from the Kimmeridge Clay Formation of the U.K., and high diversity among Late Jurassic plesiosauroids". Journal of Vertebrate Paleontology. 34 (5): 1053–1071. doi:10.1080/02724634.2014.850087. ISSN 0272-4634. S2CID 85066808.

[plesiosaurturnover-1] Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Reviews. 89 (1): 1–23. doi:10.1111/brv.12038. PMID 23581455. S2CID 19710180.

[Spitrasaurus-2] Espen M. Knutsen; Patrick S. Druckenmiller; Jørn H. Hurum (2012). "Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen". Norwegian Journal of Geology. 92 (2–3): 187–212. ISSN 0029-196X.Low resolusion pdf High resolusion pdf

[:0-3] Benson, Roger B. J.; Bowdler, Timothy (2014-07-29). "Anatomy of Colymbosaurus megadeirus (Reptilia, Plesiosauria) from the Kimmeridge Clay Formation of the U.K., and high diversity among Late Jurassic plesiosauroids". Journal of Vertebrate Paleontology. 34 (5): 1053–1071. doi:10.1080/02724634.2014.850087. ISSN 0272-4634. S2CID 85066808.

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