Posts Tagged Kaiparowits Formation
Farke, Andrew A. & Chiara A. Wilridge. 2013. A Possible Pterosaur Wing Phalanx from the Kaiparowits Formation (Late Campanian) of Southern Utah, USA – PalArch’s Journal of Vertebrate Palaeontology 10(2) (2013), 1-6. ISSN 1567-2158. 6 pages + 1 figure.
Posted by ijjn in PalArch's Journal of Vertebrate Palaeontology on April 20th, 2013
Abstract An isolated bone from the late Campanian-aged Kaiparowits Formation of southern Utah is tentatively identified as the terminal wing phalanx (manual phalanx IV-4) from a pterosaur, representing the first report of this clade from the formation. The specimen is 60 mm long and hollow, with thin and delicate walls and expanded ?proximal and ?distal ends. This is consistent with anatomy reported for equivalent elements in pterodactyloid pterosaurs. Although the specimen cannot be more precisely identified, it is consistent with occurrences of pterosaurs in penecontemporaneous terrestrial depositional environments throughout western North America.
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Lucia Herrero & Andrew A. Farke. 2010. Hadrosaurid Dinosaur Skin Impressions from the Upper Cretaceous Kaiparowits Formation of Southern Utah, USA. – Palarch’s Journal of Vertebrate Palaeontology 7(2) (2010), 1-7. ISSN 1567-2158. 7 pages + 1 figure.
Posted by PalArch Editor (IN) in PalArch's Journal of Vertebrate Palaeontology on August 29th, 2010
Abstract Skin impressions from hadrosaurid dinosaurs are relatively common finds throughout the Cretaceous Western Interior of North America. A recently discovered specimen from the late Campanian-aged Kaiparowits Formation of southern Utah is typical for hadrosaurs, with randomly arranged polygonal tubercles averaging around 4 mm in length and 3 mm in width. Based on the associated bones, these impressions likely originated on the thorax of the animal. In contrast with most previously published finds, the skin is not preserved in perfect articulation with the skeleton. This suggests a taphonomic mode in which the skeleton and soft tissues were partially disarticulated prior to burial.
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