Temporal range: Early Cretaceous–Recent, 131–0 Ma
File:Sapeornis chaoyangensis.JPG
Fossil specimen of Sapeornis chaoyangensis, Hong Kong Science Museum
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Euavialae
Clade: Avebrevicauda
Paul, 2002

Avebrevicauda (meaning "birds with short tails") is a group of stem-birds which includes all avialan species with ten or fewer free vertebrae in the tail. The group was named in 2002 by Gregory S. Paul to distinguish short-tailed birds from their ancestors, such as Archaeopteryx, which had long, reptilian tails.[1]


  1. ^ Paul, G.S. (2002). Dinosaurs of the Air. Baltimore: Johns Hopkins University Press. 460 pp.
Hemipus picatus This article is part of Project Bird Taxonomy, a All Birds project that aims to write comprehensive articles on every order, family and other taxonomic rank related to birds.
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