Peedee Formation | |
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Stratigraphic range: | |
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Type | Formation |
Underlies | Castle Hayne Limestone |
Overlies | Black Creek Formation |
Thickness | Up to 886 ft (270 m) |
Lithology | |
Primary | Glauconitic to argillic sandstone |
Other | Claystone, limestone |
Location | |
Region | North & South Carolina |
Country | ![]() |
Type section | |
Named for | Pee Dee River, type locality: Burches Ferry, South Carolina[1] |
The Peedee Formation is a geologic formation in North and South Carolina. A marine deposit, named for exposures along the Great Peedee River, it preserves belemnites and foraminifera fossils dating to the Late Cretaceous (Maastrichtian).[1] The formation is notable for its occurrence of Belemnitella americana, known as the Pee Dee Belemnite (PDB), a long-standing standard in stable carbon isotope research. A single pterosaur femur, possibly an Azhdarchid, from the Peedee formation is one of the few pterosaur body fossils found in Eastern North America.[2]
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