The climate was generally hot and dry, forming typical red-bed sandstones and evaporites. There is no evidence of glaciation at or near either pole; in fact, the polar regions were apparently moist and temperate, a climate suitable for reptile-like creatures. Pangaea's large size limited the moderating effect of the global ocean; it's continental climate was highly seasonal, with very hot summers and very cold winters. It probably had strong cross-equatorial monsoons.
During the Triassic period, which lasted from about 252 to 201 million years ago, five notable living things included the early dinosaurs, such as Eoraptor, the marine reptile Nothosaurus, the archosaur Pseudosuchia, the plant Lepidopteris, and the first mammals, like Morganucodon. This period marked significant evolutionary developments, including the rise of dinosaurs and the diversification of early reptiles and mammals. The Triassic ecosystems were characterized by a mix of terrestrial and marine life, reflecting the aftermath of the Permian-Triassic extinction event.
The earliest reptiles known evolved around 312 million years ago, and looked a lot like lizards. However, they were not actually lizards. The oldest known lizard fossil dates to 220 million years ago, about the same time that dinosaurs evolved. That was during the Triassic period of the Mesozoic era.
During the Jurassic period, the environment was warmer and had higher levels of carbon dioxide in the atmosphere compared to the present. The landmasses were generally located closer together, forming the supercontinent Pangaea. The Jurassic period had a diverse range of plant and animal species, including dinosaurs, which dominated the terrestrial ecosystems.
The first primitive mammals appeared in the fossil record during the Late Triassic period, approximately 225 million years ago. These early mammals were small, shrew-like creatures that lived alongside dinosaurs. The emergence of mammals marked a significant evolutionary development, leading to the diverse range of species we see today.
The oldest dinosaur fossils date from the Carnian stage of the Triassic period. That was around 220 million years ago. The first dinosaurs were small carnivores, like Eoraptor, and small, long necked herbivores called prosauropods.
Some index fossils during the Triassic period include ammonites, conodonts, and certain marine reptiles like nothosaurs and thalattosaurs. These fossils are used by paleontologists to help date and correlate rock layers from that time period. They provide important information about the environments and life forms of the Triassic era.
it was mostly covered with trees and grass.
Hot and dry
Socket-tooth reptiles, also known as phytosaurs, were ancient reptiles that lived during the Triassic Period. They had long, slender skulls with socket-like depressions for their teeth, which resemble those of modern crocodiles. Phytosaurs were semi-aquatic predators that roamed both land and water during the Triassic.
k
Warmer climate
During the Triassic period, which lasted from about 252 to 201 million years ago, five notable living things included the early dinosaurs, such as Eoraptor, the marine reptile Nothosaurus, the archosaur Pseudosuchia, the plant Lepidopteris, and the first mammals, like Morganucodon. This period marked significant evolutionary developments, including the rise of dinosaurs and the diversification of early reptiles and mammals. The Triassic ecosystems were characterized by a mix of terrestrial and marine life, reflecting the aftermath of the Permian-Triassic extinction event.
The earliest reptiles known evolved around 312 million years ago, and looked a lot like lizards. However, they were not actually lizards. The oldest known lizard fossil dates to 220 million years ago, about the same time that dinosaurs evolved. That was during the Triassic period of the Mesozoic era.
grassy and naked
During the end of the Triassic period, the first mammals evolved from therapsids, or mammal like reptiles. Some of these mammals were the Purgatorius, a tiny rodent like creature, and the Castorocauda, which had beaver like characteristics.
The environment was covered with trees and grass, and the air was warm and moist.
I'm Guessing some thing like 1,000,500?