Cranial pathologies in a specimen of Pachycephalosaurus.

<h4>Background</h4>A frontoparietal dome of a large pachycephalosaurid collected from the Upper Cretaceous Hell Creek Formation in 2001 is identified as Pachycephalosaurus wyomingensis. The specimen features two large oval depressions on the dorsal surface, accompanied by numerous circul...

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Autores principales:	Joseph E Peterson, Christopher P Vittore
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cd285497ff40434ba78a70db97cbac27
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spelling	oai:doaj.org-article:cd285497ff40434ba78a70db97cbac272021-11-18T07:20:10ZCranial pathologies in a specimen of Pachycephalosaurus.1932-620310.1371/journal.pone.0036227https://doaj.org/article/cd285497ff40434ba78a70db97cbac272012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22558394/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>A frontoparietal dome of a large pachycephalosaurid collected from the Upper Cretaceous Hell Creek Formation in 2001 is identified as Pachycephalosaurus wyomingensis. The specimen features two large oval depressions on the dorsal surface, accompanied by numerous circular pits on the margin and inner surface of the larger depressions.<h4>Methodology/principal findings</h4>In order to identify the origin of these structures, computed tomography (CT) data and morphological characteristics of the specimen are analyzed and compared with similar osteological structures in fossil and extant archosaurs caused by taphonomic processes, non-pathologic bone resorption, and traumatic infection/inflammatory origins. The results of these analyses suggest that the structures are pathologic lesions likely resulting from a traumatic injury and followed by secondary infection at the site.<h4>Conclusions/significance</h4>The presence of lesions on a frontoparietal dome, and the exclusivity of their distribution along the dorsal dome surface, offers further insight into frontoparietal dome function and supports previously hypothesized agonistic behavior in pachycephalosaurids.Joseph E PetersonChristopher P VittorePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e36227 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joseph E Peterson Christopher P Vittore Cranial pathologies in a specimen of Pachycephalosaurus.
description	<h4>Background</h4>A frontoparietal dome of a large pachycephalosaurid collected from the Upper Cretaceous Hell Creek Formation in 2001 is identified as Pachycephalosaurus wyomingensis. The specimen features two large oval depressions on the dorsal surface, accompanied by numerous circular pits on the margin and inner surface of the larger depressions.<h4>Methodology/principal findings</h4>In order to identify the origin of these structures, computed tomography (CT) data and morphological characteristics of the specimen are analyzed and compared with similar osteological structures in fossil and extant archosaurs caused by taphonomic processes, non-pathologic bone resorption, and traumatic infection/inflammatory origins. The results of these analyses suggest that the structures are pathologic lesions likely resulting from a traumatic injury and followed by secondary infection at the site.<h4>Conclusions/significance</h4>The presence of lesions on a frontoparietal dome, and the exclusivity of their distribution along the dorsal dome surface, offers further insight into frontoparietal dome function and supports previously hypothesized agonistic behavior in pachycephalosaurids.
format	article
author	Joseph E Peterson Christopher P Vittore
author_facet	Joseph E Peterson Christopher P Vittore
author_sort	Joseph E Peterson
title	Cranial pathologies in a specimen of Pachycephalosaurus.
title_short	Cranial pathologies in a specimen of Pachycephalosaurus.
title_full	Cranial pathologies in a specimen of Pachycephalosaurus.
title_fullStr	Cranial pathologies in a specimen of Pachycephalosaurus.
title_full_unstemmed	Cranial pathologies in a specimen of Pachycephalosaurus.
title_sort	cranial pathologies in a specimen of pachycephalosaurus.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/cd285497ff40434ba78a70db97cbac27
work_keys_str_mv	AT josephepeterson cranialpathologiesinaspecimenofpachycephalosaurus AT christopherpvittore cranialpathologiesinaspecimenofpachycephalosaurus
_version_	1718423626627153920

Cranial pathologies in a specimen of Pachycephalosaurus.

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