Ancient Life of Illinois w/ Ray Wiggers

Are you curious about the sea that used to be over what is now Illinois? The Past Revealed in Our Fossil Record:
The geologic and biologic history of Illinois, as revealed by its fossils — from marine invertebrates of the
Ordovician sea of half a billion years ago, to the luxuriant, equatorial coal swamps of the Pennsylvanian period
and to the massive “megafauna” mammals of the modern Ice Age. Free (suggested donation of $5).