• Source: Scales Shale

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




See also


List of fossiliferous stratigraphic units in Illinois




References



Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.

Kata Kunci Pencarian:

• Scales Shale
• St. Peter Sandstone
• Shale
• Pope Mega Group
• Shale gas
• Brainard Shale
• Trenton Group
• Muscatatuck Group
• Patoka Formation
• Shale oil