Middle Triassic archosaurs

Avipes (meaning "bird foot") is a genus of extinct archosaurs represented by the single species Avipes dillstedtianus, which lived during the middle Triassic period. The only known fossil specimen, a partial foot (metatarsals), was found in Bedheim, Thuringia, Germany, in deposits of Lettenkohlensandstein (a form of sandstone). Avipes was named in 1932 by Huene. Although originally classified as a coelurosaur or a ceratosaur, a new study of the fossil specimen found that it was too incomplete to assign to a group more specific than Archosauria, and so it was regarded as indeterminate by Rauhut

Teleocrater (meaning "completed basin", in reference to its closed acetabulum) is a genus of avemetatarsalian archosaur from the Middle Triassic Manda Formation of Tanzania. The name was coined by English paleontologist Alan Charig in his 1956 doctoral dissertation, but was only formally published in 2017 by Sterling Nesbitt and colleagues. The genus contains the type and only species T. rhadinus. Uncertainty over the affinities of Teleocrater have persisted since Charig's initial publication; they were not resolved until Nesbitt et al. performed a phylogenetic analysis. They found that Teleoc

Spondylosoma (meaning "vertebra body") is a genus of avemetatarsalian archosaur, belonging to the clade Aphanosauria, from the Middle Triassic (late Ladinian age) Lower Santa Maria Formation in Paleorrota Geopark, Brazil.

Aphanosauria ("hidden lizards") is an extinct group of reptiles distantly related to dinosaurs (including birds). They are at the base of a group known as Avemetatarsalia, one of two main branches of archosaurs. The other main branch, Pseudosuchia, includes modern crocodilians. Aphanosaurs possessed features from both groups, indicating that they are the oldest and most primitive known clade of avemetatarsalians, at least in terms of their position on the archosaur family tree. Other avemetatarsalians include the flying pterosaurs, small bipedal lagerpetids, herbivorous silesaurids, and the in

Yarasuchus (meaning "red crocodile") is an extinct genus of avemetatarsalian archosaur that lived during the Anisian stage of the Middle Triassic of India. The genus was named and described in 2005 from a collection of disarticulated but fairly complete fossil material found from the Middle Triassic Yerrapalli Formation. The material is thought to be from two individuals, possibly three, with one being much more complete and articulated than the other. The type and only species is Y. deccanensis. Yarasuchus was a quadruped roughly long, with an elongated neck and tall spines on its vertebrae.

Sikannisuchus is an extinct genus of large archosaur from upper Triassic (Norian stage) deposits of northeastern British Columbia, Canada. It is known from the holotype, TMP 94.382.3, a posterior portion of skull roof and from other fragmentary remains. It was found from four localities of the Pardonet Formation, near the community of Sikanni Chief. It was first named by Elizabeth L. Nicholls, Donald B. Brinkman, and Xiao-Chun Wu in 1998 and the type species is Sikannisuchus huskyi. It would have reached about in length. Ichthyosaurs such as Macgowania, Callawayia and possibly the giant s