The length of a day 500 million years ago was about 21 hours.
20 million years ago
If They Lived 500 years ago It WAS 500 years ago
144 to 65 million years ago
around 20 million years ago
1.8 million years ago
Trilobites lived in the Palaeozoic era, between 300 and 500 million years ago.
Pterodactylus fossils date to between 150.8 and 148.5 million years ago. Thus, they existed for about 2.3 million years.
500 years ago
5,510 years
About 500 to 600 years ago
It lasted 64 million years.
aquatic
From about 65 million years ago to about 265 million years ago I think. In any case, a long time ago.
The Carboniferous is considered to have started 354 million years ago and ended 290 million years ago.
The Carboniferous is considered to have started 354 million years ago and ended 290 million years ago.
Dinosaurs have dominated earth for 150 million years ago. This is the reason why they are so successful.
65 million years ago