CARBONDALE — The Illinois Native Plant Society (Southern Chapter), Sigma Xi (SIU Chapter) and the Department of Plant Biology (SIU) will present a lecture and discussion by Scott Elrick at 7 p.m. Thursday, April 18, at the Life Science III Auditorium at SIU.

Elrick is a geologist with the Illinois State Geological Survey. In the program, titled “Snapshot in Time–Geologic Secrets of the Springfield Coal Fossilized Forests,” Elrick will describe a 300 million-year-old fossilized forest, found along the Galatia channel, an ancient river that flowed across Southern Illinois.

The ancient forest is the world’s largest intact rain forest from the Pennsylvanian Period to be discovered. The forest plants and their encapsulating geology reveal much about the ancient environmental conditions during the time of their formation and about the coal they left behind.

Elrick will describe the geology surrounding the underground discovery and the geologic and climatic factors that led to the preservation of this fossil forest.

There will be a reception following the program at 8 p.m.

For more information call Dr. Nancy C. Garwood at 618-453-3236 or email

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