What are some examples of Triassic dinosaurs that are thought to have been relatively rare based on their fossil record?

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 ... At the beginning of dinosaur history (the Triassic Period), there was one supercontinent on Earth called Pangea. Many dinosaur types were spread across it. Sep 21, 2022 ... ... dinosaurs were in fact lizard-hipped. The results are reported ... Dinosaurs originated in the Late Triassic period, about 225 million ... We tend to think of dinosaurs as living in tropical rainforests, and for good reason — the Triassic and Jurassic periods in which they came to rule the ... Mar 18, 2015 ... ... Triassic Period. In the Southern Hemisphere, “these animals hunted alongside the earliest theropod dinosaurs, creating a predator pile-up ... 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 ... Aug 10, 2022 ... Dinosaurs are often thought of as heat-loving. They were well suited to the steamy greenhouse environment of the Triassic Period. The secret ... Jan 7, 2021 ... They lived on Earth in the Mesozoic era, specifically from the late Triassic to the end of the Cretaceous period, a time-span of about 170 ... 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 ... What were previously uneconomic resources in thin "pay zones" of buried Triassic Period sediments became more valuable after the 1990, with development of ...