How do scientists date Triassic dinosaur fossils?

Jul 10, 2018 ... iant dinosaurs lived on Earth much earlier than previously thought, according to a team of excavators in Argentina who discovered the ... They first emerged during the Triassic period around 245 million years ago. ... Around 80 per cent of crocodilian species were wiped out in the extinction event ... ... 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 ... Sep 22, 2022 ... ... dinosaurs were in fact lizard-hipped. The results are reported in the ... periods/Mesozoic era/Triassic period; /Physical sciences/Earth ... The Mesozoic Era lasted from about 250 million to 66 million years ago. It includes the Triassic,. Jurassic, and Cretaceous periods. Page 6 ... 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. The first dinosaurs lived in the early Triassic. Other reptiles also lived in this period, such as plant-eating rhynchosaurs. Fish and turtles swam in the sea, ... Mar 22, 2010 ... ... dinosaurs' rise as the Triassic Period ended. Fossil and carbon ... Thanks to the climatic catastrophe, those early, small dinosaurs were ... Nov 29, 2024 ... This era is known as the “Age of Reptiles," when dinosaurs were dominant. ... The Triassic period was part of the Mesozoic Era, which occurred ... Dec 19, 2024 ... Between them, Cope and Marsh named and publicised most of the dinosaurs whose names are now familiar: Allosaurus, Brontosaurus, Diplodocus, ...