Once upon a time there was an inland sea up to central Illinois, we're talking millions of years ago. I collect geodes up here and often get fossils from adjacent strata. Most of the fossils I get are of Mississippian age (long, long ago). They are all from creatures.of the sea...crinoids, bivalves, corals and the like.
(an example is the fossil shoe found in a post above)
crinoid head
crinoids
2" high Horn Coral
crinoid head
crinoids
2" high Horn Coral
