What evidence is there for territoriality or social hierarchies among Triassic dinosaurs?

The Mesozoic is divided into three time periods: the Triassic, Jurassic, and Cretaceous. ... The primitive dinosaurs of the Triassic were neither as abundant nor ... 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 ... 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 ... A specialized group of archosaurs, called dinosaurs, first appeared in the Late Triassic but did not become dominant until the succeeding Jurassic Period. Oct 10, 2016 ... ... were later convergently evolved by post-Triassic dinosaurs. As one ... Triassic Period and post-Triassic archosaurs demonstrates the ... Dec 5, 2018 ... It was during the Triassic Period that the first dinosaurs began to appear. They were mainly small, nimble animals that walked on two legs. 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, ... Sep 21, 2022 ... ... dinosaurs were in fact lizard-hipped. The results are reported ... Dinosaurs originated in the Late Triassic period, about 225 million ... Jan 23, 2025 ... The Triassic Period creature Nyasasaurus, considered either an early dinosaur ... dinosaurs were living," Heath said. The researchers said ... May 17, 2001 ... Dinosaur communities were separated by both time and geography. ... At the beginning of dinosaur history (the Triassic Period), there was one ...