10.6084/m9.figshare.4545706.v1
Federico A. Gianechini
Federico
A. Gianechini
Peter J. Makovicky
Peter
J. Makovicky
Sebastián Apesteguía
Sebastián
Apesteguía
The cranial osteology of <i>Buitreraptor gonzalezorum</i> Makovicky, ApesteguÍa, and AgnolÍn, 2005 (Theropoda, Dromaeosauridae), from the Late Cretaceous of Patagonia, Argentina
Taylor & Francis Group
2017
cranial osteology
Argentina Buitreraptor gonzalezorum
Agnol Ín 2005
Cretaceous
SUPPLEMENTAL
Buitreraptor shares traits
Buitreraptor gonzalezorum Makovicky
article
DOI
maxillary fenestra
Diagnostic cranial characters
phylogenetic
Agnol ín 2005
DATA
Patagonia
Apestegu ía 2017.
unenlagiine dromaeosaurid
2017-01-12 18:15:49
Dataset
https://tandf.figshare.com/articles/dataset/The_cranial_osteology_of_i_Buitreraptor_gonzalezorum_i_Makovicky_Apestegu_a_and_Agnol_n_2005_Theropoda_Dromaeosauridae_from_the_Late_Cretaceous_of_Patagonia_Argentina/4545706
<p><i>Buitreraptor gonzalezorum</i> is a paravian theropod from the Late Cretaceous of Patagonia that has been recovered as an unenlagiine dromaeosaurid in several phylogenies. It was preliminarily described in a brief article, but a detailed osteology has not been published to date. Here we provide a thorough osteological description of the skull of the holotype, which preserves the maxillae, nasals, frontals, parietals, postorbitals, quadrates, and many mandibular bones, together with some in situ and isolated teeth. The isolated occipital condyle is the only element preserved from the braincase. Diagnostic cranial characters of this taxon include elongate skull; maxillary fenestra not dorsally displaced; posteriorly expanded postantral wall; quadrate with expanded lateral flange and a posterior pneumatic foramen; straight anterior border of the supratemporal fossa; nutrient foramina within a well-marked lateral groove on the dentary; and small, fluted teeth without denticles. <i>Buitreraptor</i> shares traits with <i>Austroraptor cabazai</i>, the only other unenlagiine to preserve cranial remains, although they also differ in the morphology of the maxillary fenestra and the presence/absence of interdental plates. A phylogenetic analysis was performed, recovering <i>Buitreraptor</i> as an unenlagiine dromaeosaurid, in agreement with previous works. The phylogenetic implications of some characters are discussed, including characters not previously considered for this taxon, such as the presence of the mylohyoid foramen. The distribution and codings of some characters are reconsidered, with an evaluation of how they influence the phylogenetic position of <i>Buitreraptor</i> and paravian relationships overall.</p> <p>SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at <a href="http://www.tandfonline.com/UJVP" target="_blank">www.tandfonline.com/UJVP</a></p> <p>Citation for this article: Gianechini, F. A., P. J. Makovicky, and S. Apesteguía. 2017. The cranial osteology of <i>Buitreraptor gonzalezorum</i> Makovicky, Apesteguía, and Agnolín, <a href="#cit0066" target="_blank">2005</a> (Theropoda, Dromaeosauridae), from the Late Cretaceous of Patagonia, Argentina. Journal of Vertebrate Paleontology. DOI: 10. 10.1080/02724634.2017.1255639.</p>