A new, large tyrannosaurine theropod from the Upper Cretaceous of China

David W. E. Hone*, Kebai Wang, Corwin Sullivan, Xijin Zhao, Shuqing Chen, Dunjin Li, Shuan Ji, Qiang Ji, Xing Xu

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

43 Citations (Scopus)

Abstract

Tyrannosaurids are primarily gigantic, predatory theropod dinosaurs of the Cretaceous. Here we report a new member of the tyrannosaurid clade Tyrannosaurinae from the Upper Cretaceous Wangshi Croup of Zhucheng, Shandong Province, China, based on a maxilla and associated dentary. The discovery of this animal, here named Zhuchengtyrannus magnus gen. et sp. nov., adds to the known diversity of tyrannosaurids in Asia. Z. magnus can be identified by a horizontal shelf on the lateral surface of the base of the ascending process, and a rounded notch in the anterior margin of the maxillary fenestra. Several additional features contribute to a unique combination of character states that serves to further distinguish Z. magnus from other taxa. Comparisons with other tyrannosaurids suggest that Zhuchengtyrannus was a very large theropod, comparable in size to both Tarbosaurus and Tyrannosaurus. (C) 2011 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)495-503
Number of pages9
JournalCretaceous Research
Volume32
Issue number4
DOIs
Publication statusPublished - Aug 2011

Keywords

  • Dinosaur
  • Saurischian
  • Tyrannosaurid
  • Skull
  • China
  • Cretaceous
  • NORTH-AMERICA
  • DINOSAURIA
  • ASIA
  • REX

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