Avebrevicauda
| Avebrevicaudans Temporal range: Early Cretaceous–Present, 131–0 Ma |
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| Fossil specimen of Sapeornis chaoyangensis, Hong Kong Science Museum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Euavialae |
| Clade: |
Avebrevicauda Paul, 2002 |
| Subgroups | |
Avebrevicauda (meaning "birds with short tails") is a group 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 avialans from their ancestors, such as Archaeopteryx, which had long, reptilian tails.
The cladogram below follows the results of a phylogenetic study by Wang et al., 2016.
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