Freeport Formation

The Freeport Formation is a geologic formation in Pennsylvania and Ohio. It preserves fossils dating back to the Late Pennsylvanian period.^[2] It is within the Allegheny Group.

Freeport Formation
Stratigraphic range: Pennsylvanian
Type	Formation
Location
Region	Pennsylvania, Ohio
Country	United States
Type section
Named for	Freeport, Pennsylvania
Named by	H. D. Rogers, 1840[1]

See also

• Earth sciences portal
• Ohio portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Ohio