Unaysauridae

Unaysaurus is a genus of herbivorous unaysaurid sauropodomorph dinosaur. Discovered in southern Brazil, in the geopark of Paleorrota, in 1998, and announced in a press conference on Thursday, December 3, 2004, it is one of the oldest dinosaurs known. It is closely related to plateosaurid dinosaurs found in Germany, which indicates that it was relatively easy for species to spread across the giant landmass of the time, the supercontinent of Pangaea. The fossils of Unaysaurus are well-preserved. They consist of an almost complete skull, including a lower jaw, and partial skeleton with many of th

Jaklapallisaurus is a genus of unaysaurid sauropodomorph dinosaur. It lived during the Late Triassic period (late Norian to earliest Rhaetian) in what is now Telangana, central India. The genus is monotypic, only including the species Jaklapallisaurus asymmetricus.

Macrocollum is a genus of unaysaurid sauropodomorph dinosaur that lived during the Late Triassic period (early Norian) in what is now Brazil. It is one of the oldest dinosaurs known.

Unaysauridae is a clade of basal sauropodomorphs from the Late Triassic of India and Brazil.