Ornithurae (meaning "bird tails" in Greek) is a natural group that includes modern birds and their very close relatives such as Ichthyornis and the hesperornithines...

Phylogenetic Taxonomy, and Systematics of Ichthyornis and Apatornis (Avialae: Ornithurae)" (PDF). Bulletin of the American Museum of Natural History. 286: 1–179...

Luis Chiappe in 1999 as the common ancestor of Patagopteryx, Vorona, and Ornithurae, plus all of its descendants. Because one definition is node-based and...

(2017) considered the family Vegaviidae to be stem group birds within Ornithurae. Mayr et al. (2018) claimed that comparison of the plesiomorphic traits...

analyses, this definition would be synonymous with the more widely used name Ornithurae. An alternate definition was provided in 2001, naming Carinatae an apomorphy-based...

Phylogenetic Taxonomy, and Systematics of Ichthyornis and Apatornis (Avialae: Ornithurae)" (PDF). Bulletin of the American Museum of Natural History. 286: 1–179...

most living birds. The taxonomy of this group is confusing; the name "Ornithurae" was first proposed by Ernst Haeckel in 1866 and has been revised in meaning...

feathers. The other pygostyle type is plowshare-shaped. It is found in Ornithurae (living birds and their closest relatives), and in almost all flying species...

phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae: Ornithurae)" (PDF). Bulletin of the American Museum of Natural History. 286: 1–179...

Ornithurae...

Aotsuka, Keiichi; Sato, Tamaki (2016-08-01). "Hesperornithiformes (Aves: Ornithurae) from the Upper Cretaceous Pierre Shale, Southern Manitoba, Canada". Cretaceous...

classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Clade: Ornithurae Class: Aves Families Accipitridae p.p. Gypaetinae Aegypiinae Cathartidae...

the basis of an isolated left leg. It is the oldest-known member of the Ornithurae, the group which includes modern birds (Neornithes) and extinct related...

Ornithurae...

alternative position for vegaviids as stem-birds in the more inclusive clade Ornithurae. Mayr et al. (2018) did a review of vegaviid systematics stating that...

Phylogenetic Taxonomy, and Systematics of Ichthyornis and Apatornis (Avialae: Ornithurae). Bulletin of the American Museum of Natural History 286: 1-179 PDF fulltext...

Ornithurae...

Yanornithiformes has been erected to mark their distinctness from other early Ornithurae such as Gansus, but might be called Songlingornithiformes; especially...

Ornithurae...

Ornithurae...

Phylogenetic Taxonomy, and Systematics of Ichthyornis and Apatornis (Avialae: Ornithurae)" (PDF). Bulletin of the American Museum of Natural History. 286: 1–179...

placement, possibly a member of Ornithuromorpha belonging to the group Ornithurae. It is known from a partial skeleton which was discovered in the Snow...

Ornithurae...

†Apsaravis Ornithurae...

phylogenetically separate from the Ornithurae and, thus, from modern birds. Apsaravis has features of both Sauriurae and Ornithurae. Apsaravis has several characters...

Ornithurae...

that all avialans outside of Euornithes (the clade they referred to as Ornithurae) with preserved tail feathers had only short coverts or elongated paired...

Ornithurae...

Ornithurae...

cervical vertebrae, that were previously known only in members of the Ornithurae. A phylogenetic analysis by Zhou et al. reduces to just three the number...