Avebrevicauda
Introduction '''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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