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An Early Ostrich Dinosaur and Implications for Ornithomimosaur Phylogeny

Authors
Publisher
American Museum of Natural History
Publication Date
Disciplines
  • Earth Science
  • Geography

Abstract

Abstract A new ornithomimosaur from the Yixian Formation of Liaoning Province People's Republic of China is described. These beds are near the Jurassic-Cretaceous boundary. This specimen is interesting because it has several primitive characters for ornithomimosaurs such as teeth and a short first metacarpal. This taxon is placed in a phylogenetic analysis of Coelurosauria and shown to be near the base of the ornithomimosaur clade. Using this phylogeny we comment on the biogeographic history of this group.

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