Tanius

Tanius
Temporal occurrence
	Upper Cretaceous ( Campanium )
	83.6 to 72 million years
Locations
	China ( Shandong and Heilongjiang );
Systematics
	Pelvic dinosaur (Ornithischia)
	Cerapoda
	Ornithopoda
	Iguanodontia
	Hadrosaurs (Hadrosauridae)
	Tanius
Scientific name
	Tanius
	Wiman , 1929
Art
	Tanius sinensis;

Tanius is a genus of hadrosaurs (Hadrosauridae) from the Upper Cretaceous ( Campanium ) Asia . Only the type species T. sinensis has been scientifically described .

description

Tanius likely resembled Edmontosaurus , but most of the front skull is unknown. In contrast to almost all other hadrosaurs with the exception of Gilmoreosaurus and Bactrosaurus , the contact surface of the zygomatic bone (Jugale) with the upper jawbone (maxillary) was not or hardly laterally widened, but rather stretched longitudinally.

Reference

The fossil record of tanius consists of probably three individuals, one of which disjointed skeletons were found, as well as bones of the skull and the body skeleton . The skeletons come from the Wangshi group in the Chinese province of Shandong , a site from the Upper Cretaceous, in which, in addition to Tanius , fossils of other hadrosaurs ( Tsintaosaurus , Shantungosaurus ), the tyrannosaurid Chingkankousaurus and the micropachycephalosaurus belonging to the Pachycephalosauria were found. Under the Upper Cretaceous sedimentary rocks there is another fossil-bearing layer from the Lower Cretaceous with finds of Psittacosaurus .

Systematics

Carl Wiman published the first scientific description of the genus Tanius in 1929 . The genus could belong to the early hadrosaurs, but a more precise classification within the group is still pending - as with other genera ( Claosaurus , Secernosaurus ) - due to the scarcity of material.

Within the genus, only the type species Tanius sinensis is considered valid, while the species Tsintaosaurus spinorhinus described as T. chinkankouensis Young, 1958 and T. laiyangensis Zhen, 1976 , and T. prynadai Riabinin, 1937 / Young, 1958 as a noun dubium of Bactrosaurus prynadai is considered.

supporting documents

literature

David B. Weishampel , Peter Dodson , Halszka Osmólska (eds.): The Dinosauria . 1st paperback edition. University of California Press, Berkeley CA et al. 1992, ISBN 0-520-06726-6 .

Individual evidence

^ Dougal Dixon : The World Encyclopedia of Dinosaurs & Prehistoric Creatures. Lorenz, London 2007, ISBN 978-0-7548-1730-7 , p. 353.
↑ ^a ^b after Weishampel et al. 1992, p. 556.
↑ ^a ^b Tanius ( Memento of October 4, 2007 in the Internet Archive ), data sheet on Dinoruss.org
↑ according to Weishampel et al. 1992, p. 544.
↑ according to Weishampel et al. 1992, p. 134.
↑ according to Weishampel et al. 1992, p. 591.
↑ according to Weishampel et al. 1992, p. 555.

[1] Dougal Dixon : The World Encyclopedia of Dinosaurs & Prehistoric Creatures. Lorenz, London 2007, ISBN 978-0-7548-1730-7 , p. 353.

[Weishampel_556-2] ter Weishampel et al. 1992, p. 556.

[dinoruss-3] Tanius ( Memento of October 4, 2007 in the Internet Archive ), data sheet on Dinoruss.org

[Weishampel_544-4] rding to Weishampel et al. 1992, p. 544.

[Weishampel_134-5] rding to Weishampel et al. 1992, p. 134.

[Weishampel_591-6] rding to Weishampel et al. 1992, p. 591.

[Weishampel_555-7] rding to Weishampel et al. 1992, p. 555.