What evidence is there for the presence of a postorbital bar (a bony structure behind the eye socket) in some Triassic dinosaurs?

The first dinosaurs, prosauropods, early ornithopods, small predators like Eoraptor and Herrerasaurus appeared. · The mammal-like reptiles were declining. · The ... A. Herrerasaurus, Eoraptor, and Coelophysis were some carnivorous dinosaurs in the Triassic period. 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 ... 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 ... ... were almost completely gone and the dinosaurs began their 135 million-year domination on our planet. “Stiff Competition: For much of the Triassic period ... Feb 4, 2020 ... Thalattosaurs were marine reptiles that lived more ... Triassic Period, when their distant relatives — dinosaurs — were first emerging. 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 ... Mar 18, 2015 ... ... Triassic Period. In the Southern Hemisphere, “these animals hunted alongside the earliest theropod dinosaurs, creating a predator pile-up ... 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, ... What animals were on Earth during the Triassic Period? After the great extinction at the end of the Permian, many new kinds of animals evolved during the ...