There are lots of good things about living in Kansas. One of the least appreciated is that fossils are nearly everywhere. Finding fossils in most parts of Kansas is as easy as falling off a petrified log.
Fossil hunters divide Kansas into two roughly equal parts.
These rocks were deposited from about 100 million to 65 million years ago, when the dinosaurs went extinct. From the Flint Hills to the eastern border of the state, the rocks and fossils are much older. Fossils from these areas are from 320 to 250 Ma. Elsewhere in the state, fossils are less common. The ancient stream deposits in the High Plains and those all along the Arkansas River are unlikely to have many fossils.