An article published in the journal “Scientific Reports” describes the study of a fossil of Teyujagua paradoxa, a reptile lived at the beginning of the Triassic, about 250 million years ago. A well-preserved skull was found at the beginning of 2015 near the city of São Francisco de Assis, in southern Brazil. According to the members of the international team that studied it, this discovery represents a help in understanding the evolution of the group of animals called archosauriforms (Archosauriformes), which includes dinosaurs, pterosaurs and crocodiles but also birds.