Just about everyone has heard of the age of dinosaurs and the Jurassic period but not many people know of the time before when animals, dinosaurs, and plants were just starting to flourish. The time before dinosaurs and animals was called The Triassic period which was at the beginning of the Mesozoic era which was approximately 251 million years ago and went on for about 50 million years. The Triassic period has three sections within which are called Early Triassic 251 Ma, Middle Triassic 245 Ma and Late Triassic 228 Ma. Within these sections are the different stages of animals and plants evolving and growing.
The Early Triassic section started in 251 Ma and ended in 245 Ma. This is when the earth was recovering …show more content…
In the Early Triassic, it is said that Therapsids would dominate the Early Triassic period. The Early Triassic Period had no dinosaurs and little animals besides the remaining two groups. A reptile called Lystrosaurus was another animal that was alive during the Early Triassic. The Lystrosaurus returned to the ocean and is said that they swam like modern eels. The Early Triassic section ended 245 Ma which led the animals to evolve more …show more content…
The sea life evolved to have more reefs and different types of sea creatures such as the marine reptile fauna, Shastasaurus, dolphin-like Parvipelvia and the hybodont sharks. The Shastasaurus were diverse and widespread and grew to be one of the largest reptiles of that time. There were freshwater faunas, and a diverse selection of fish, sharks, lungfish, amphibians and reptiles. The marine life in the late Triassic time period included crustaceans such as Acanthinopus, Antripos, Eryon, Knebelia, Galacia, Itasca and much more other types of sea creatures that were spread across the