Featured Fossils

Specimen AMNH FI 39489A
Specimen USNM 1796
Specimen UCM IP 33627
Specimen MCZ 2337
Specimen UCM IP 18577
Specimen UCM 17001B
Specimen MCZ 2499
Specimen USNM 40763
Specimen UCMP 3610
Florissant Fossil Beds National Monument

About Florissant Fossil Beds

Geographical Map of Florissant Fossil Beds National Park
Welcome to the Florissant fossil beds iDigPaleo site! The Florissant Formation in central Colorado preserves fossilized plants, insects, and other organisms in a 34 million year old lake deposit. This is an extremely diverse fossil site with approximately 1800 described species. Florissant provides one of the last glimpses of the flora and fauna of the Eocene just before the transition into the cooler Oligocene epoch.