250 million years ago Earth was at the very beginning of the Triassic Period and was just starting to recover from the Permian-Triassic extinction event, the worst of Earth's five great extinctions. Various lizard-like reptiles were around at this time, some of which would become the ancestors of crocodiles and dinosaurs, which had not yet evolved. A few reptiles-like animals called synapsids, most of which disappeared in the extinction, were still clinging on as well. Mammals would later evolve from these animals. Insects were also present, though not all of the groups we know had evolved. There were no grasses or flowering plants and it is entirely possible that all of the trees of the previous area were extinct, such was the devastation. New species of tree would have to evolve from smaller plants. A variety of fish, including sharks swam the one ocean that existed at this time and were accompanied by shelled cephalopods.
back then some animals were not around that are around now.Also back then it used to be more field and way back was dinosaurs.An interesting fact is that sea turtles lived way back even before dinosaurs lived.
HOPE THAT HELPED
Yes infact over 400 million years ago!
The last dinosaurs became extinct about 65 million years ago at the end of the Cretaceous period.
1.8 million years ago
4600 million years ago
The Mesozoic Era is an interval of geological time from about 250 million years ago to about 65 million years ago. It is often referred to as the Age of Reptiles
Permian Period was from 299 million years ago to 250 million years ago
270 million years ago
250 million years ago
Yes infact over 400 million years ago!
Over 250 million years ago.
The earliest amphibians appeared approximately 250 million years ago.
The Mesozoic Era lasted approximately 250 million years ago to about 67 million years ago .
It is a term from Geology, is an interval of geological time from about 250 million years ago to about 65 million years ago.
the dinosaurs lived from 250 million years ago to 65 million years ago.
No, snakes evolved much later, in the Early Cretaceous epoch, about 150 million years ago.
roughly 250 million years ago.
dinosaurs lived for about 250 million years ago.