Middle Jurassic–Present, 175.6–0 Ma Possible Early Jurassic record
|File:Allosaurus SDNHM (1).png|
|Mounted A. fragilis skeleton cast, San Diego Natural History Museum|
|File:Keel-billed toucan woodland.png|
|Keel-billed Toucan perched on a branch|
Avetheropoda was named by Gregory S. Paul in 1988, 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, but this definition was published slightly later.
|This article is part of Project Dinosaur Taxonomy, a All Birds project that aims to write comprehensive articles on every order, family and other taxonomic rank related to dinosaurs.|