1. See also

2. References

The Purington Shale is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period.

See also

• List of fossiliferous stratigraphic units in Illinois

References

• {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= Various Contributors to the Paleobiology Database|url= http://www.fossilworks.org/|accessdate= 22 June 2014|deadurl= yes|archiveurl= https://web.archive.org/web/20140731140924/http://fossilworks.org/|archivedate= 31 July 2014|df= }}

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