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Pteranodon (Reptilia, Pterosauria); stratigraphic distribution and taphonomy in the lower Pierre Shale Group (Campanian), western South Dakota and eastern Wyoming

Jennifer E. Hargrave
Pteranodon (Reptilia, Pterosauria); stratigraphic distribution and taphonomy in the lower Pierre Shale Group (Campanian), western South Dakota and eastern Wyoming (in The geology and paleontology of the Late Cretaceous marine deposits of the Dakotas, James E. Martin (editor) and David C. Parris (editor))
Special Paper - Geological Society of America (2007) 427: 215-225

Abstract

The Cretaceous Pierre Shale Group in eastern South Dakota and western Wyoming contains numerous fossils, including the flying reptile Pteranodon, 19 specimens of which are described herein. Pteranodon specimens have been found in the two lower formations of the Pierre Shale Group: 4 in the basal Gammon Ferruginous Formation, and 15 in the overlying Sharon Springs Formation. Of these specimens, 64% are associated forelimb elements. Two factors, or a combination thereof, explain the abundance of associated forelimb elements: (1) predatory preference of the muscle mass in the chest over the wing membrane, which may not have offered much nutrient to the predators; and (2) the strong wing membrane, which would have secured the wing elements while the muscle mass would have fallen away. In either case, the wing membrane may have served as a protective layer over the forelimb bones until burial. Two Pteranodon specimens contain vertebrae of the fish Enchodus, which appear to be stomach contents, the first documented Pteranodon stomach contents from South Dakota.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 427
Title: Pteranodon (Reptilia, Pterosauria); stratigraphic distribution and taphonomy in the lower Pierre Shale Group (Campanian), western South Dakota and eastern Wyoming
Title: The geology and paleontology of the Late Cretaceous marine deposits of the Dakotas
Author(s): Hargrave, Jennifer E.
Author(s): Martin, James E.editor
Author(s): Parris, David C.editor
Affiliation: University of Oklahoma, School of Geology and Geophysics, Norman, OK, United States
Affiliation: South Dakota School of Mines and Technology, Department of Geology and Geological Engineering, Museum of Geology, Rapid City, SD, United States
Pages: 215-225
Published: 2007
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 978-0-8137-2427-0
References: 41
Accession Number: 2008-084275
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch map
N42°34'60" - N44°31'00", W104°55'00" - W102°00'00"
Secondary Affiliation: New Jersey State Museum, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200825
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