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A basal tyrannosauroid dinosaur from the Late Jurassic of China.
Nature. 2006 Feb 09; 439(7077):715-8.Nat

Abstract

The tyrannosauroid fossil record is mainly restricted to Cretaceous sediments of Laurasia, although some very fragmentary Jurassic specimens have been referred to this group. Here we report a new basal tyrannosauroid, Guanlong wucaii gen. et sp. nov., from the lower Upper Jurassic of the Junggar Basin, northwestern China. G. wucaii is the oldest known tyrannosauroid and shows several unexpectedly primitive pelvic features. Nevertheless, the limbs of G. wucaii share several features with derived coelurosaurs, and it possesses features shared by other coelurosaurian clades. This unusual combination of character states provides an insight into the poorly known early radiation of the Coelurosauria. Notably, the presumed predatory Guanlong has a large, fragile and highly pneumatic cranial crest that is among the most elaborate known in any non-avian dinosaur and could be comparable to some classical exaggerated ornamental traits among vertebrates.

Authors+Show Affiliations

Institute of Vertebrate Paleontology and Paleoanthropology, Beijing 100044, China. xingxu@vip.sina.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Historical Article
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16467836

Citation

Xu, Xing, et al. "A Basal Tyrannosauroid Dinosaur From the Late Jurassic of China." Nature, vol. 439, no. 7077, 2006, pp. 715-8.
Xu X, Clark JM, Forster CA, et al. A basal tyrannosauroid dinosaur from the Late Jurassic of China. Nature. 2006;439(7077):715-8.
Xu, X., Clark, J. M., Forster, C. A., Norell, M. A., Erickson, G. M., Eberth, D. A., Jia, C., & Zhao, Q. (2006). A basal tyrannosauroid dinosaur from the Late Jurassic of China. Nature, 439(7077), 715-8.
Xu X, et al. A Basal Tyrannosauroid Dinosaur From the Late Jurassic of China. Nature. 2006 Feb 9;439(7077):715-8. PubMed PMID: 16467836.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A basal tyrannosauroid dinosaur from the Late Jurassic of China. AU - Xu,Xing, AU - Clark,James M, AU - Forster,Catherine A, AU - Norell,Mark A, AU - Erickson,Gregory M, AU - Eberth,David A, AU - Jia,Chengkai, AU - Zhao,Qi, PY - 2005/10/12/received PY - 2005/12/05/accepted PY - 2006/2/10/pubmed PY - 2006/3/1/medline PY - 2006/2/10/entrez SP - 715 EP - 8 JF - Nature JO - Nature VL - 439 IS - 7077 N2 - The tyrannosauroid fossil record is mainly restricted to Cretaceous sediments of Laurasia, although some very fragmentary Jurassic specimens have been referred to this group. Here we report a new basal tyrannosauroid, Guanlong wucaii gen. et sp. nov., from the lower Upper Jurassic of the Junggar Basin, northwestern China. G. wucaii is the oldest known tyrannosauroid and shows several unexpectedly primitive pelvic features. Nevertheless, the limbs of G. wucaii share several features with derived coelurosaurs, and it possesses features shared by other coelurosaurian clades. This unusual combination of character states provides an insight into the poorly known early radiation of the Coelurosauria. Notably, the presumed predatory Guanlong has a large, fragile and highly pneumatic cranial crest that is among the most elaborate known in any non-avian dinosaur and could be comparable to some classical exaggerated ornamental traits among vertebrates. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/16467836/A_basal_tyrannosauroid_dinosaur_from_the_Late_Jurassic_of_China_ L2 - https://doi.org/10.1038/nature04511 DB - PRIME DP - Unbound Medicine ER -