Ordovician
Links
The Ordovician
http://www.ucmp.berkeley.edu/ordovician/ordovician.html
An overview of the period from the UC Berkeley Museum of Paleontology.
Ordovician Geography
http://vishnu.glg.nau.edu/rcb/Ordovician.html
Description and maps of the continents as they existed at the time.
Wisconsin Fossils
http://www.fox.uwc.edu/fossils/wisc/
Ordovician Trentonian fauna from the Galena and Maquoketa of West De Pere and Green Bay, Wisconsin
Ordovician Fossil Looking for Identifcation
http://www3.sympatico.ca/dreamit/index1.htm
Pictures of an large, unidentified fossil from the Ordovician of Ontario, Canada.