Pygostylia is a group of avialans which includes the Confuciusornithidae and all of the more advanced species, the Ornithothoraces. The group Pygostylia...
8 KB (796 words) - 04:37, 25 June 2024
avialans were shortened with the advent of the pygostyle bone in the group Pygostylia. In the late Cretaceous, around 95 million years ago, the ancestor of...
18 KB (1,628 words) - 11:05, 11 August 2024
Birds evolved from certain feathered theropod dinosaurs, and there is no real dividing line between birds and non-avian dinosaurs except that some of the...
232 KB (18,990 words) - 16:49, 4 July 2024
the monophyly of the group, placing them as basal avialans sister to Pygostylia. No phylogenetic definitions for these groups were provided by Zhou and...
3 KB (197 words) - 19:10, 21 April 2024
adapted from these later to improve flight performance. The bird clade Pygostylia was named in 1996, by Luis Chiappe, for the presence of this feature and...
9 KB (958 words) - 20:01, 29 April 2024
Chongmingia is a genus of basal avialan belonging to Pygostylia that lived during the Aptian. It was found in the Jiufotang Formation in Chaoyang, China...
5 KB (473 words) - 17:49, 14 May 2024
Clade: Dinosauria Clade: Saurischia Clade: Theropoda Clade: Avialae Clade: Pygostylia Clade: Ornithothoraces Chiappe & Calvo, 1994 Subgroups †Enantiornithes...
7 KB (451 words) - 06:31, 21 June 2024
