Contact Us at Prehistoric World Images Links to related Prehistoric and Dinosaur Sites Our Dinosaur Drawing Contest

Send a FREE Dinosaur or Prehistoric Postcard

Online Dinosaur Timeline Gallery
Traveling Dinosaur Exhibit

Million Years Ago

The Cambrian period of the Paleozoic era was characterized by a diverse eruption of life in the seas. Life had not yet evolved on land. The highest forms of life existing at this time were the trilobites, which reached lengths up to two feet. Green and red algae started to appear as well as sponges, gastropods, and segmented worms.

Cambrian Period

Cambrian period

Precambrian period
Cambrian period
Ordovician period
Silurian period
Devonian period
Carboniferous period
Permian period, Dimetrodon
Triassic dinosaur
Jurassic dinosaur pictures
Cretaceous dinosaur pictures
Tertiary prehistoric animals
Quaternary prehistoric animals



[ Home[Time Line]  [Exhibits]  [About the Artist]  [Yahoo Store]  [Contact Us]

Dinosaurs--FREE Tyrannosaurus rex Museum Quality Dinosaur Toy