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The Paleozoic Era. From the University of California at Berkeley Museum of Paleontology (UCMP) exhibit. Links to articles on Paleozoic stratigraphy, ancient life, and fossil localities.
The Cambrian Period. UCMP exhibit. Links to articles on Cambrian stratigraphy, ancient life, and fossil localities.
Archaeocyatha. UCMP exhibit on the archaeocyathids, Early Cambrian reef builders.
Burgess Shale Fossils. An overview of the Burgess Shale. Well illustrated with photos of Burgess Shale bedding and fossils, links to other Burgess Shale sites.
Among My Trilobites. Many photographs of trilobites; links to other trilobite sites.
The Ordovician Period. UCMP exhibit. Links to articles on Ordovician stratigraphy, ancient life, fossil localities, and tectonics/paleoclimate.
The Ordovician Radiation. Abstract of an article in the March-April 1996 issue of American Scientist by Mary L. Droser, Richard Fortey, and Xing Li. Includes a nice graphic of the diversity of marine life over geologic time.
The Cambrian Explosion. This web site describes, via 3D computer graphics, the evolutionary history of modern animals.
Lecture on the history of life. Very nice drawings of Cambrian and Ordovician animals.
Color-coded plate reconstruction sequence. A wonderful series of paleogeographic maps depicting the patterns of the continents from 620 million years ago to the present.
Earth History page of the Paleomap Project. Clickable links to paleographic maps of geologic time intervals, including the Cambrian and Ordovician periods.
Paleogeographic globes show global and North America and Europe reconstructions. For this chapter, see the globes for the Cambrian and Ordovician periods.
Global tectonic features maps display the major tectonic elements (plates, oceans, ridges, subduction zones, mountain belts). For this chapter, see the maps for the Early Cambrian, Middle Cambrian, Early Ordovician, and Late Ordovician. Explanation of symbols.
Global Earth History. Includes a chart showing the paleogeography and evolution of life from the Cambrian through the present.
