Paleobiology: The Early Paleozoic - http://www.emc.maricopa.edu/faculty/farabee/biobk/BioBookPaleo3.html
Provides information on the Cambrian explosion, the Ordovician and the Silurian. |
Paleobiology: The Late Paleozoic - http://www.emc.maricopa.edu/faculty/farabee/biobk/BioBookPaleo4.html
Article on the Devonian, the coal swamps and glaciers of the Carboniferous, the Permian and the great Permian extinction. |
The Paleozoic - http://earth.usc.edu/~stott/Catalina/Ordivician.html
An overview of the era from the Ordovician Period to the Permian, with maps and timelines. |
The Paleozoic Era - http://www.ucmp.berkeley.edu/paleozoic/paleozoic.html
An overview of the era from the UC Berkeley Museum of Paleontology. |
The Paleozoic Era - http://www.bobainsworth.com/fossil/palaeozoic.htm
An illustrated geological timeline. |