Ouranosuarus

Main

Eras

542000000 bc - 251000000 bc
251000000 bc - 65000000 bc
65000000 bc - 2000588 bc

Periods of Paleozoic Era

542000000 bc - 488000000 bc
488000000 bc - 444000000 bc
444000000 bc - 416000000 bc
416000000 bc - 359000000 bc