Colossal Fossils
Exploration Page
Precambrian Eon

4,600 - 541 mya

Paleozoic EraPaleozoic.html
541 - 252 myaPaleozoic.html
Mesozoic EraMesozoic.html
252 - 66 myaMesozoic.html
Cenozoic EraCenozoic.html
66 mya - presentCenozoic.html
Where can I find fossils in Wisconsin?WIfossil.htmlshapeimage_15_link_0

Wisconsin is rich with fossils.  Though you won’t find any dinosaurs, you can find trilobites, shells, and corals in many locations throughout the state.  To find fossils near you, click here.

How are fossils made?HowAreFossilsMade.htmlshapeimage_16_link_0

Learn about the fossilization process and find out what it takes for a living animal to become a part of our collection at Colossal Fossils.

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Click on the timeline to the left to learn more about Earth’s amazing history.