The cranial osteology of Buitreraptor gonzalezorum Makovicky, ApesteguÍa, and AgnolÍn, 2005 (Theropoda, Dromaeosauridae), from the Late Cretaceous of Patagonia, Argentina
| Autor: | Federico Abel Gianechini, Peter J. Makovicky, Sebastián Apesteguía |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
010506 paleontology Osteology Paleontology Anatomy Unenlagiinae Biology Theropoda biology.organism_classification Occipital condyle 010603 evolutionary biology 01 natural sciences Skull medicine.anatomical_structure stomatognathic system Dromaeosauridae Buitreraptor Quadrate bone medicine 0105 earth and related environmental sciences |
| Zdroj: | Journal of Vertebrate Paleontology. 37:e1255639 |
| ISSN: | 1937-2809 0272-4634 |
| Popis: | Buitreraptor gonzalezorum 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. Buitreraptor shares traits w... |
| Databáze: | OpenAIRE |
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