An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.

Therizinosauria are an unusual group of theropod dinosaurs, found mostly in the Cretaceous deposits in Mongolia, China and western USA. The basal forms of this group are represented by incomplete or disarticulated material. Here, we report a nearly complete, articulated skeleton of a new basal theri...

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Autores principales:	Hanyong Pu, Yoshitsugu Kobayashi, Junchang Lü, Li Xu, Yanhua Wu, Huali Chang, Jiming Zhang, Songhai Jia
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/729c64bab6ae4154adb5a2190a852c8d
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spelling	oai:doaj.org-article:729c64bab6ae4154adb5a2190a852c8d2021-11-18T07:43:59ZAn unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.1932-620310.1371/journal.pone.0063423https://doaj.org/article/729c64bab6ae4154adb5a2190a852c8d2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23734177/?tool=EBIhttps://doaj.org/toc/1932-6203Therizinosauria are an unusual group of theropod dinosaurs, found mostly in the Cretaceous deposits in Mongolia, China and western USA. The basal forms of this group are represented by incomplete or disarticulated material. Here, we report a nearly complete, articulated skeleton of a new basal therizinosaur from the Early Cretaceous Yixian Formation of Jianchang County, western part of Liaoning Province, which sheds light on our understanding of anatomy of basal therizinosaurs. This new dinosaur shows some typical therizinosaur features, such as neural spines of the anterior caudal vertebrae that possess anterior and posterior alae, a rectangular buttress on the ventrolateral side of the proximal end of metacarpal I, and appressed metatarsal shafts. Our phylogenetic analysis suggests that it is a basal therizinosaur (sister taxon to Therizinosauroidea) because it bears many basal therizinosaur characters in the dentition, pelvis and hind limbs. The new therizinosaur described here has unique tooth and jaw characters such as the offsetting of the tooth row by a shelf and dentary teeth with labially concave and lingually convex dentary teeth, similar to ornithopods and ceratopsians.Hanyong PuYoshitsugu KobayashiJunchang LüLi XuYanhua WuHuali ChangJiming ZhangSonghai JiaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 5, p e63423 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hanyong Pu Yoshitsugu Kobayashi Junchang Lü Li Xu Yanhua Wu Huali Chang Jiming Zhang Songhai Jia An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
description	Therizinosauria are an unusual group of theropod dinosaurs, found mostly in the Cretaceous deposits in Mongolia, China and western USA. The basal forms of this group are represented by incomplete or disarticulated material. Here, we report a nearly complete, articulated skeleton of a new basal therizinosaur from the Early Cretaceous Yixian Formation of Jianchang County, western part of Liaoning Province, which sheds light on our understanding of anatomy of basal therizinosaurs. This new dinosaur shows some typical therizinosaur features, such as neural spines of the anterior caudal vertebrae that possess anterior and posterior alae, a rectangular buttress on the ventrolateral side of the proximal end of metacarpal I, and appressed metatarsal shafts. Our phylogenetic analysis suggests that it is a basal therizinosaur (sister taxon to Therizinosauroidea) because it bears many basal therizinosaur characters in the dentition, pelvis and hind limbs. The new therizinosaur described here has unique tooth and jaw characters such as the offsetting of the tooth row by a shelf and dentary teeth with labially concave and lingually convex dentary teeth, similar to ornithopods and ceratopsians.
format	article
author	Hanyong Pu Yoshitsugu Kobayashi Junchang Lü Li Xu Yanhua Wu Huali Chang Jiming Zhang Songhai Jia
author_facet	Hanyong Pu Yoshitsugu Kobayashi Junchang Lü Li Xu Yanhua Wu Huali Chang Jiming Zhang Songhai Jia
author_sort	Hanyong Pu
title	An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
title_short	An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
title_full	An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
title_fullStr	An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
title_full_unstemmed	An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.
title_sort	unusual basal therizinosaur dinosaur with an ornithischian dental arrangement from northeastern china.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/729c64bab6ae4154adb5a2190a852c8d
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An unusual basal Therizinosaur dinosaur with an ornithischian dental arrangement from northeastern China.

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