December 14, 2025 11:42 AM
Youngest rhynchosaur ever recorded unveiled in Brazil
A specimen of Macrocephalosaurus mariensis, the smallest hatchling of a rhynchosaur species ever discovered, has been described in detail in the British Journal of Systematic Palaeontology on Thursday (December 11). The fossil, unearthed in southern Brazil, consists of a skull measuring under 2.5 centimetres in length and was presented by palaeontologists from the Federal University of Santa Maria (UFSM). Among Brazilian rhynchosaurs, the presence of a single maxillary sulcus, along with two r...