Ouranosuarus

Main

Eras

Paleozoic

542000000 bc - 251000000 bc

Mesozoic

251000000 bc - 65000000 bc

Cenozoic

65000000 bc - 2000588 bc

Periods of Paleozoic Era

Cambrian

542000000 bc - 488000000 bc

Ordovician

488000000 bc - 444000000 bc

Silurian

444000000 bc - 416000000 bc

Devonian

416000000 bc - 359000000 bc