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 fluvial, lacustrine and tuffaceous sedimentary succession of the Cañadón Asfalto
continental basin exposed in the Argentinean Chubut Province of central Patagonia …

We describe the basal sauropodomorph Eoraptor lunensis, based on the nearly complete
holotypic skeleton and referred specimens, all of which were discovered in the Cancha de …

It was traditionally thought that the oldest known dinosaur assemblages were not diverse,
and that their early diversification and numerical dominance over other tetrapods occurred …

An exceptional new specimen (CAPPA/UFSM 0035) of Buriolestes schultzi was discovered
during recent fieldwork at the type locality of the taxon, which is Carnian in age (Late …

Summary The importance of adaptation [1–4] versus organizational constraints [5–7] in
shaping common macroevolutionary trends remains unclear [8]. The fossil record is key to …

The transition from basal sauropodomorphs to sauropods is one of the most dramatic
evolutionary transformations in the history of dinosaurs. Constituent taxa of this transition …

Many hypotheses have been proposed for the rise of dinosaurs, but their early diversification
remains poorly understood. This paper examines the occurrences, species diversity and …

Sauropod dinosaurs include the largest terrestrial animals and are considered to have
uninterrupted rapid rates of growth, which differs from their more basal relatives, which have …