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 invertebrate (primarily belemnites , echinoderms and foraminifera ) and vertebrate (primarily shark teeth, with some marine reptile remains) fossils dating to the Late Cretaceous ( Maastrichtian ).
5-654: 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 . The stratigraphy of the formation spans from the early Maastrichtian (in South Carolina) to
10-493: Is a genus of belemnite from the Late Cretaceous of Europe and North America . Belemnitella was a squidlike animal, probably related to the ancestors of modern squids and cuttlefish. The shell was internal. The rostrum or guard is found the most often and possesses a distinctive slit at its ventral surface and a ridge on the dorsal surface. The phragmocone (internal shell) has a small protoconch at its tip, and fit into
15-466: The cavity and the guard. It also had septa and a ventral siphuncle (tube filled with living tissues running through chambers) within the phragmocone, projecting forward as a beak-like blade. It had growth layers like tree rings, seen within the cavity of the organism and when the cone is sectioned. The cone was light-brown and glassy in appearance. It is distributed widely in North America. A specimen of
20-709: The late Maastrichtian shortly before the Cretaceous-Paleogene extinction event . The formation is divided into several members, including the early-mid Maastrichtian Rocky Point Member and the late Maastrichtian Island Creek Member. Based on its fauna, it appears to be roughly concurrent with the Navesink Formation from New Jersey . Bsaed on Case et al (2017): Allison Ferry, South Carolina ?Myrtle Beach, South Carolina Niels Eddy Landing, North Carolina East Coast Limestone Quarry, North Carolina Myrtle Beach, South Carolina The Peedee Formation preserves some of
25-632: The latest-occurring remains of the Roveacrinida , an extinct order of minute, pelagic crinoids . Black Rock Landing, North Carolina This article about a specific stratigraphic formation in North Carolina is a stub . You can help Misplaced Pages by expanding it . This article about a specific stratigraphic formation in South Carolina is a stub . You can help Misplaced Pages by expanding it . Belemnitella americana Belemnitella
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