How did the development of a more upright posture in early dinosaurs affect their agility and speed?

Explore dinosaurs by: Dinosaurs in the Late Triassic (237 to 201 million years ago) 15 dinosaurs from the Late Triassic What were previously uneconomic resources in thin "pay zones" of buried Triassic Period sediments became more valuable after the 1990, with development of ... Among the first dinosaurs was the two-footed carnivore Coelophysis, which grew up to 9 feet (2.7 meters) tall, weighed up to a hundred pounds (45 kilograms), ... Thalattosaurs are another type of ancient marine reptile that lived during the mid-late Triassic Period in what is now Alaska. They are not yet known from ... The first dinosaurs, prosauropods, early ornithopods, small predators like Eoraptor and Herrerasaurus appeared. · The mammal-like reptiles were declining. · The ... paleontology, fossil record, mass extinction, volcanism, dinosaur evolution, Triassic period. Key Concepts. Life during the Triassic; Extinction at the end of ... Dec 9, 2021 ... ... dinosaurs, an ancient archosaur that lived near the beginning of the Triassic period. By analyzing whether bright body color was present in ... Jul 21, 2024 ... Ichthyosaurs, which dominated the Triassic period, had already begun their decline. Prehistoric fish were abundant, as were squids and sharks, ... Mar 22, 2010 ... ... dinosaurs' rise as the Triassic Period ended. Fossil and carbon ... Thanks to the climatic catastrophe, those early, small dinosaurs were ... Sep 22, 2022 ... ... dinosaurs were in fact lizard-hipped. The results are reported in the ... periods/Mesozoic era/Triassic period; /Physical sciences/Earth ...