The oldest unequivocal records of Dinosauria were unearthed from Late Triassic rocks
(approximately 230 Ma) accumulated over extensional rift basins in southwestern Pangea …

Dinosaurs were remarkably successful during the Mesozoic and one subgroup, birds,
remain an important component of modern ecosystems. Although the extinction of non-avian …

The early evolution of archosauromorphs during the Permo-Triassic constitutes an excellent
empirical case study to shed light on evolutionary radiations in deep time and the timing and …

Abstract The Paraná Basin was filled by a sedimentary package deposited in successive
sedimentation episodes related to the tectonic events that hit the SW portion of the …

Abstract Triassic dinosaurs from South Brazil are considered as some of the oldest known
worldwide, but their precise correlation to other early dinosaur occurrences have proven …

Dinosauromorpha includes dinosaurs and other much less diverse dinosaur precursors of
Triassic age, such as lagerpetids [1]. Joint occurrences of these taxa with dinosaurs are rare …

The Triassic period documents the origin and diversification of modern amniote lineages
and the Late Triassic fossil record of South America has been crucial to shed light on these …

Triassic beds from Argentina and Brazil provide the most relevant fossil record of early
dinosauriforms in terms of numerical abundance and taxonomic diversity. This record …

Dinosaurs have been major components of ecosystems for over 200 million years. Although
different macroevolutionary scenarios exist to explain the Triassic origin and subsequent …

Background Lepidosauria (lizards, snakes, tuatara) is a globally distributed and ecologically
important group of over 9,000 reptile species. The earliest fossil records are currently …