-
170
abundant dinosaurs
-
251
triassic time period begins
this time period begins 251 years ago -
430
abundent eurypterids
-
542
cambrian time begins
the cambrian time begins 547 years ago -
Jul 22, 655
coelophysis
this fossle lived 655 million years ago -
Jurassic time period begins
Jurassic time period begins 200 million years ago -
mastodont
this fossle lived .01 million years ago -
beluga whale
this fossle also lived .01 million years ago -
earliest insects