It was found in the south of Brazil, which at the time was connected to northwest Africa. The whole world was united into the great supercontinent of Pangaea, which was just starting to divide into Laurasia in the north, and Gondwana in the south. A U-Pb (Uranium decay) dating found that the Caturrita Formation dated around 225.42 million years ago, putting it less than 10 million years younger than the Santa Maria and Ischigualasto Formations, from where the earliest dinosaurs are known. The Caturrita Formation has uncovered a wide variety of fauna, although the formation is also referred to as the upper portion of the Santa Maria 2 Sequence. Multiple dinosauriforms are represented in the rock of the formation, including the silesaur Sacisaurus agudoensis, and the coeval sauropodomorph Guaibasaurus candelariensis, all of which are not found anywhere else. The dicynodont Jachaleria candelariensis, an unclassified phytosaur, and isolated teeth of archosaur origin can also be unearthed in the formation. A single stereospondyl amphibian is known from the formation, but has not yet been identified specifically. An extremely rich amount of small tetrapods have been recovered from the Caturrita Formation, which is quite surprising. They measure less than long. Species preserved are the procolophonid Soturnia caliodon, the lepidosaur Cargninia enigmatica, the sphenodontid Clevosaurus brasiliensis, and some small therapsids coexisting with Faxinalipterus minima, a putative pterosaur. The therapsids include Riograndia guaibensis, Brasilodon quadrangularis, and Irajatherium hernandezi . References External links Dinosaurs of Rio grande do Sul. Sauropodomorphs Dinosaur genera Late Triassic dinosaurs of South America Fossils of Brazil Paleontology in Rio Grande do Sul Triassic Brazil Taxa named by Alexander Kellner Fossil taxa described in 2004