Paleozoic (541-252 million years ago) means 'ancient life' The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period
Paleozoic (541-252 million years ago) means 'ancient life' The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period
Paleozoic (541-252 million years ago) means 'ancient life' The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period