Nacatoch Formation

The Nacatoch Formation is a geologic formation in Arkansas, USA.^[1] It preserves fossils dating back to the Cretaceous period.

Nacatoch Formation
Stratigraphic range: Late Cretaceous
Type	Formation
Underlies	Arkadelphia Marl
Overlies	Saratoga Formation
Thickness	150 to 400 feet[1]
Location
Region	Arkansas
Country	United States
Type section
Named for	Nacatoch Bluff on the Little Missouri River, Clark County, Arkansas
Named by	Albert Homer Purdue[2]

See also

• Paleontology portal

• List of fossiliferous stratigraphic units in Arkansas
• Paleontology in Arkansas