An abelisaurid humerus from the Upper Cretaceous of India

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作者
Ariel H. Méndez
Fernando E. Novas
Sankar Chatterjee
机构
[1] Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”,Conicet, Laboratorio de Anatomía Comparada y Evolución de los Vertebrados
[2] Museum of Texas Tech University,Department of Geosciences
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关键词
Lameta Formation; Abelisauridae; Humerus; Forelimb morphology; Lameta-Formation; Abelisauridae; Humerus; Vorderglieder-Morphologie;
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摘要
The Lameta Formation (Upper Cretaceous, Maastrichtian) of India has yielded abundant fossils of abelisaurid theropods, including bones from the cranium, vertebral column, pectoral and pelvic girdles, and hindlimb. However, the forelimbs of Indian abelisaurids remain unknown. Here we describe an abelisaurid humerus from exposure of the Lameta Formation near the village of Rahioli in northwestern India. This new material exhibits derived traits that are distinctive of Abelisauridae, for example an articular head that is hemispherical in proximal view, thus establishing the specimen as the first abelisaurid humerus from India.
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页码:421 / 425
页数:4
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