What Was The Triassic Period Like ?
The Triassic period which falls between the Permian and Jurassic is considered as the Mesozoic Era's first period, nearly 250-200 million years ago. The most remarkable feature of this period is that it followed a major mass extinction which happens towards the end of the Permian period. There was also some extinction in the late stage of Triassic period, but the remains failed to give an idea about the starting and ending of the period. |
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The Triassic period started with very few sources of life as the Permian period witnessed the major extinction of biodiversity. The first one to appear in the Triassic after the disappearance from the Permian period were the corals of hexacorallia group and the pterosaurs were the first among the vertebrates.
The presence or formation of Open Ocean during Triassic period is not very sure. It is said that all the mass of earth was a single supercontinent called as Pangaea. A vast basin or gulf formed from the eastern Pangaea known as the Tethys Sea, while from west Paleo-Tethys formed in the mid-Triassic and existed till the Paleozoic. The rest of the coast was enclosed by the Panthalassa, a world ocean. But the deep ocean founded in the Triassic vanished by the subduction of the plates of the oceans, and left very little or no idea about the existence of the Open Ocean.
The climatic condition in the Triassic was by and large hot and arid, that formed red bed sandstones and evaporites. No proof of glaciations on any of the pole has been found. The Polar Regions were considered to be humid and moderate which is supposed to be good for creatures like reptiles. The presence of global ocean on the vast size Pangaea restricted the weather conditions and it observed the extreme in any season such as scorching summers and chilled winters and cross-equatorial monsoons.
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