Triassic pterosaur precursors of Brazil: catalog, evolutionary context, and a new hypothesis for phylogenetic relationships of Pterosauromorpha

Anais da Academia Brasileira de Ciências, Journal Year: 2025, Volume and Issue: 97(suppl 1)

Published: Jan. 1, 2025

Abstract Pterosaurs, remarkable for their extensive evolutionary history and role as the first vertebrates to achieve active flight, have long intrigued paleontologists public alike. Spanning over 150 million years vanishing at end of Mesozoic Era, pterosaurs represent a major radiation within terrestrial ecosystems. Despite prominence, origins remained complex puzzle in paleontology 200 years. We present comprehensive catalog pterosaur precursors specimens from Upper Triassic Candelária Sequence Santa Maria Supersequence southern Brazil discuss significance understanding pterosauromorph Pterosauria. Additionally, we carried out phylogenetic analysis investigate hypothesis that lagerpetids are closely related pterosaurs, incorporating new data into most dataset dinosauromorphs. Our results support pterosauromorphs, offering insights relationships between non-pterosaur pterosauromorphs better known volant relatives. This study highlights importance detailed anatomical analyses resolving underscores value fossil record early evolution pterosauromorphs.

Language: Английский

New postcranial remains of a non-mammaliaform cynodont from the Pinheiros-Chiniquá Sequence (Middle-Upper Triassic) of Brazil

Journal of South American Earth Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 105487 - 105487

Published: March 1, 2025

Language: Английский