Unaysaurus is a genus of unaysaurid sauropodomorph herbivore 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.[1]
The fossils of Unaysaurus are well preserved. They consist of an almost complete skull, complete with a lower jaw, and partial skeleton with many of the bones still connected to each other in their natural positions. It is one of the most complete dinosaur skeletons (including complete skull) ever recovered in Brazil.
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described Unaysaurus tolentinoi as a new genus and species on the basis of the holotype specimen UFSM 11069. The generic name, "Unaysaurus", comes from...
defined by Müller et al. (2018) as the most inclusive clade including Unaysaurus tolentinoi, but not Plateosaurus engelhardti nor Saltasaurus loricatus...
Plateosaurus. Their phylogenetic analyses also recovered Macrocollum and Unaysaurus within the Plateosauridae. The results of their phylogenetic analyses...
Guaibasaurus, Macrocollum, Nhandumirim, Pampadromaeus, Saturnalia, and Unaysaurus. The Pebbly Arkose Formation, which is of uncertain age but was likely...
Apaldetti, Cecilia; Da Rosa, Átila A. S. (2020-02-01). "Reassessment of Unaysaurus tolentinoi (Dinosauria: Sauropodomorpha) from the Late Triassic (early...
more genera were considered to belong to it: Sellosaurus and possibly Unaysaurus. Of these, Sellosaurus is probably another junior synonym of Plateosaurus...
Apaldetti, Cecilia; Da Rosa, Átila A. S. (February 1, 2020). "Reassessment of Unaysaurus tolentinoi (Dinosauria: Sauropodomorpha) from the Late Triassic (early...
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