Sinraptor

Sinraptor
	Sinraptor skeletal reconstruction
Temporal occurrence
	Upper Jurassic ( Oxfordian to Kimmeridgian )
	163.5 to 152.1 million years
Locations
	China;
Systematics
	Theropoda
	Tetanurae
	Carnosauria
	Allosauroidea
	Sinraptoridae
	Sinraptor
Scientific name
	Sinraptor
	Currie & Zhao , 1993

Sinraptor is a genus of two-legged running ( bipedal ) dinosaurs from the group of carnosaurs .

Live reconstruction of Sinraptor

A distinction is made between two types: The Sinraptor dongi species was found in 1993 in the Shishugou Formation from the Upper Jurassic of China .

The only skeleton found so far is missing large parts of the tail and arms, the rest is almost complete and well preserved. Sinraptor hepingensis , incorrectly described as Yangchuanosaurus hepingensis in 1992 , comes from the Upper Jurassic of Shangshaximiao. Sinraptor is very close to the genus Yangchuanosaurus , together they form the family Sinraptoridae .

Sinraptor dongi reached a body length of 7.2 meters, Sinraptor hepingensis was probably 8.5 meters long. The weight is given for S. dongi with about one ton, for Sinraptor hepingensis with 2.3 tons. Sinraptor's physique was similar to its related Allosaurus : He had three fingers on each hand and four toes including the small, non-floor hallux . His tail was stiffened and was probably used to keep his balance. The structure of his teeth suggests that he was a carnivore.

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^ Gregory S. Paul : The Princeton Field Guide To Dinosaurs. Princeton University Press, Princeton NJ et al. 2010, ISBN 978-0-691-13720-9 , p. 91, online .
^ ^A ^b ^c Philip J. Currie , Xi-Jin Zhao: A new carnosaur (Dinosauria, Theropoda) from the Jurassic of Xinjiang, People's Republic of China. In: Canadian Journal of Earth Sciences. Vol. 30, 10, 1993, ISSN 0008-4077 , pp. 2037-2081, doi : 10.1139 / e93-179 .
↑ Gao Yuhui: Yangchuanosaurus hepingensis - A new species of carnosaur from Zigong, Sichuan. In: Vertebrata Palasiatica. Vol. 30, No. 4, 1992, ISSN 0042-4404 , pp. 313-324, digitized version (PDF; 14.47 MB) .

^ François Therrien, Donald M. Henderson: My theropod is bigger than yours ... or not: estimating body size from skull length in theropods. In: Journal of Vertebrate Paleontology. Vol. 27, No. 1, 2007, ISSN 0272-4634 , pp. 108-115, doi : 10.1671 / 0272-4634 (2007) 27 [108: MTIBTY] 2.0.CO; 2 .

Web links

Commons : Sinraptor - collection of images, videos and audio files

[1] Gregory S. Paul : The Princeton Field Guide To Dinosaurs. Princeton University Press, Princeton NJ et al. 2010, ISBN 978-0-691-13720-9 , p. 91, online .

[curriezhao1993-2] A ^b ^c Philip J. Currie , Xi-Jin Zhao: A new carnosaur (Dinosauria, Theropoda) from the Jurassic of Xinjiang, People's Republic of China. In: Canadian Journal of Earth Sciences. Vol. 30, 10, 1993, ISSN 0008-4077 , pp. 2037-2081, doi : 10.1139 / e93-179 .

[gao1992-3] Gao Yuhui: Yangchuanosaurus hepingensis - A new species of carnosaur from Zigong, Sichuan. In: Vertebrata Palasiatica. Vol. 30, No. 4, 1992, ISSN 0042-4404 , pp. 313-324, digitized version (PDF; 14.47 MB) .

[4] François Therrien, Donald M. Henderson: My theropod is bigger than yours ... or not: estimating body size from skull length in theropods. In: Journal of Vertebrate Paleontology. Vol. 27, No. 1, 2007, ISSN 0272-4634 , pp. 108-115, doi : 10.1671 / 0272-4634 (2007) 27 [108: MTIBTY] 2.0.CO; 2 .