When in danger, Placerias moved desperately slow. In the heat and dry season, Placerias spread out over scrubland to feed. For the swift Coelophysis, Placerias were challenging prey. For angry males, these tusks could be lethal weapons. Their tusks were used for digging up roots. Despite their fearsome appearance, they were actually a kind of gentle herbivores. They were an "endangered species" as said by the narrator. But, eventually, Placerias became one of the last representatives of their kind that remained in the late Triassic. The Placerias herd drinking from the river. Once there were many different varieties of these powerful creatures Instead they were synapsids, close relatives of the modern mammals. The show said how they lived in huge herds, the impressive one-ton beasts were not related to dinosaurs. The Placerias were up to 3 meter long and weighed 1-2 tonnes and were said to behave like modern hippos, spending much of its time during the wet season wallowing in the water, chewing at plants near river side. In another scene, they are shown migrating to find new food.Placerias lived during the Triassic period, some 220-216 MYA, and was shown in large herds near riverbeds where they found food and water. They were shown living in riverbeds, much like the modern hippo. To date, Placerias has appeared in one television documentary, Walking with Dinosaurs. Bones are associated mostly with mudstones and a layer that contains numerous carbonate nodules. Sedimentological features of the site indicate a low-energy depositional environment, possibly flood-plain or overbank.
This site has become known as the ' Placerias Quarry' and was discovered in 1930, by Charles Camp and Samuel Welles, of the University of California, Berkeley. Johns, southeast of the Petrified Forest National Park in Arizona.
Placerias used its beak to slice through thick branches and roots with two short tusks that could be used for defence and for intra-specific display.įossils of forty Placerias were found near St. Remaining in the water would also have given Placerias some protection against land-based predators such as Postosuchus.
There are possible ecological and evolutionary parallels with the modern hippopotamus, spending much of its time during the wet season wallowing in the water, chewing at bankside vegetation. Placerias had a powerful neck, strong legs, and a barrel-shaped body. This animal was the biggest herbivore of its time, measuring up to 3.5 meters (11.3 feet) long and weighing up to two tons (907 kilograms).
0 kommentar(er)
