Temporal range:
Middle JurassicPresent, 175.6–0 Ma

Possible Early Jurassic record

Mounted A. fragilis skeleton cast, San Diego Natural History Museum
Keel-billed toucan perched on a branch
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Clade: Orionides
Clade: Avetheropoda
Paul, 1988
  • Neotetanurae Sereno et al., 1998

Avetheropoda, or "bird theropods", is a clade that includes allosauroids and coelurosaurs to the exclusion of other dinosaurs.


Avetheropoda was named by Gregory S. Paul in 1988,[1] and was first defined as a clade by Currie and Padian in 1997, to include Allosaurus, modern birds, and other animals descended from their most recent ancestor. In 1999, Paul Sereno named another group, Neotetanurae, for the clade containing Allosauroidea and Coelurosauria, and excluding other tetanurans such as megalosauroids,[2] but this definition was published slightly later.


  1. Paul, G. S. (1988). Predatory Dinosaurs of the World. New York: Simon & Schuster. ISBN 0-671-61946-2.
  2. Sereno, P. C. (1999). "The evolution of dinosaurs". Science. 284 (5423): 2137–2147. doi:10.1126/science.284.5423.2137. PMID 10381873.
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