What evidence is there for the presence of a tympanic bulla (a bony capsule enclosing the middle ear) in some Triassic dinosaurs?

paleontology, fossil record, mass extinction, volcanism, dinosaur evolution, Triassic period. Key Concepts. Life during the Triassic; Extinction at the end of ... While dinosaurs were not as abundant or diverse in this area as ... These rocks are from the Mesozoic era, between the Triassic and Cretaceous periods. Aug 12, 2014 ... In comparison, the dinosaur record in North America is a bit muddier. The most abundant fossils from the Late Triassic period have been ... ... were almost completely gone and the dinosaurs began their 135 million-year domination on our planet. “Stiff Competition: For much of the Triassic period ... The northern forests at the beginning of the Triassic were ... See this National Park Service pdf on the Triassic dinosaurs and other animals of Petrified Forest ... ... dinosaur species, which lived in the Triassic period, about 230 million years ago. The fossil was found in the Agudo municipality, in Rio Grande do Sul, the ... These early reptiles set the stage for the origin of dinosaurs and lived alongside the earliest dinosaurs throughout the Triassic Period. See Adam's ... Nov 27, 2024 ... At the beginning of the Triassic period, dinosaurs were one of many lizards roaming the Earth. ... period when dinosaurs rose to power. He ... Jul 28, 2022 ... At the end of the Triassic period, roughly 201 million years ago, most amphibious creatures and crocodile-like creatures that lived in the ... Oct 10, 2016 ... ... were later convergently evolved by post-Triassic dinosaurs. As one ... Triassic Period and post-Triassic archosaurs demonstrates the ...