What evidence is there for the presence of a retroarticular process (a bony projection at the back of the lower jaw) in some Triassic dinosaurs?

Jul 1, 2022 ... These sediments date back to the late Triassic period, around the time of the mass extinction event. "I picture it as a frozen lake," says ... Feb 9, 2002 ... The Triassic dinosaurs wore much smaller than those living in the successive periods of the Mesozoic. They were mostly slender and few reached a ... The Mesozoic is divided into three time periods: the Triassic, Jurassic, and Cretaceous. ... The primitive dinosaurs of the Triassic were neither as abundant nor ... The Triassic period is a part of the geologic timescale where the precursors to dinosaurs (a type of crocodile-like reptiles called archosaurs) were the ... Nov 14, 2023 ... Many Triassic dinosaurs lived during the Late Triassic Period, and the Procompsognathus is among those animals. Also, like many Triassic ... Mar 28, 2018 ... The earliest mammals entered the scene, and reptiles — including early dinosaurs — lived on Pangea, the name given to the giant landmass in ... 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 ... Nov 2, 2016 ... ... Triassic period, a time when the first dinosaurs appeared and Earth's continents were a single land mass known as Pangea. Although symbiosis ... Aug 31, 2022 ... ... Triassic killed off many forms of life—but not dinosaurs ... Dinosaurs, many of which were primitively insulated with either ... Nov 23, 2018 ... An elephant-sized mammal cousin lived alongside dinosaurs in Europe during the Triassic period, scientists have found.