In this second book on Paleozoic fossils, over 840 all new specimens from this period are provided, organized by biologic (taxonomic) position. It is a real eye

Over 670 color photos reveal the Paleozoic plants that covered the earth from 500 to 260 million years ago, well before the dinosaurs roamed the world. These pl

Explore the rich fossil record of the Paleozoic Era, from the Cambrian (545 million years ago) through the Permian (almost 300 million years ago) with 650 high