Related formspost-Pa·le·o·zo·ic, adjectivepre-Pa·le·o·zo·ic, adjective
Examples from the Web for paleozoic
Those which grew to be fifteen to twenty-five feet long were probably the rulers of the middle Paleozoic seas.
Nearly all the Paleozoic forms had long, straight hinge lines, which made it difficult for their enemies to open them.
Their intricate tooth structure and limblike fins strongly suggest the amphibians of later Paleozoic time.
The coal we burn to-day is mainly the remains of the wonderful growth of the flowerless vegetation of the Paleozoic Ace.The Prehistoric World|E. A. Allen
Paleozoic means "ancient life;" Mesozoic, "middle life;" Cenozoic, "recent life."Famous Men of Science|Sarah K. Bolton