The phylogenetic position of the Tyrannosauridae: implications for theropod systematics

  title={The phylogenetic position of the Tyrannosauridae: implications for theropod systematics},
  author={Thomas Holtz},
  journal={Journal of Paleontology},
  pages={1100 - 1117}
  • T. Holtz
  • Published 1 September 1994
  • Environmental Science, Geography
  • Journal of Paleontology
Tyrannosaurids are a well-supported clade of very large predatory dinosaurs of Late Cretaceous Asiamerica. Traditional dinosaurian systematics place these animals within the infraorder Carnosauria with the other large theropods (allosaurids, megalosaurids). A new cladistic analysis indicates that the tyrannosaurs were in fact derived members of the Coelurosauria, a group of otherwise small theropods. Despite certain gross cranial similarities with the large predators of the Jurassic and Early… 

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