A distance-learning project of the MILWAUKEE PUBLIC MUSEUM, funded by grants from the WISCONSIN ADVANCED TELECOMMUNICATIONS FOUNDATION and the R.D. & LINDA PETERS FOUNDATION OF BRILLION, WISCONSIN |
During the Silurian Period in earth history, 425 million years ago, when much of North America was covered by a shallow, tropical sea, reefs flourished in the area now occupied by Wisconsin and Illinois. This site uses these reefs as a vehicle for students to learn general principles, local details, and environmental significance of the study of the ancient past.
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