How did the evolution of a more dorsally oriented acetabulum (hip socket) in early dinosaurs contribute to their upright posture?

Overall the Triassic was dominated by therapsids, which were mammal-like reptiles such as Lystrosaurus, and thecodonts, which were the ancestors of dinosaurs, ... Sep 20, 2022 ... ... were big problems ... The Triassic Period (252 to 201 million years ago) kicked off the ... The dinosaur tracks were found in what was the shoreline sediments along the margins of lakes and streams. The fossils indicate that the Newark Supergroup was ... Feb 4, 2020 ... Thalattosaurs were marine reptiles that lived more ... Triassic Period, when their distant relatives — dinosaurs — were first emerging. types at the close of the Triassic period were about as shown in Table 1. ... dinosaurs. Certainly the vertebrate life of the Triassic marshes and uplands ... Feb 24, 1997 ... The fossil record reveals that dinosaurs first appeared in the Triassic Period, between 250 to 213 million years ago. It also indicates that ... A. Herrerasaurus, Eoraptor, and Coelophysis were some carnivorous dinosaurs in the Triassic period. 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 ... A specialized group of archosaurs, called dinosaurs, first appeared in the Late Triassic but did not become dominant until the succeeding Jurassic Period. Jun 19, 2017 ... The Triassic extinction took place approximately 200 million years ago, and was proceeded by the dinosaur era. One of the largest mass ...