Artículo
A giant tooth from the Late Cretaceous of Patagonia, Argentina: an enormous titanosaur or a large toothed titanosaur?
Fecha de publicación:
02/2013
Editorial:
Academic Press Ltd-elsevier Science Ltd
Revista:
Cretaceous Research
ISSN:
0195-6671
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The tooth MML-Pv 1030 comes from the Upper Cretaceous (middle Campanian–lower Maastrichtian) strata of the Allen Formation at Salitral de Santa Rosa, Río Negro, Argentina and is the biggest titanosaur tooth yet described. The specimen is a cylindrical chisel-like tooth, its length is 75 mm, mesiodistally 15 mm and labiolingually 11 mm. The wear facet is single on the lingual side of the tooth, which has an oval outline with a low angle (10°) with respect to the axial axis of the tooth. This tooth is 32% greater in length than the longest tooth registered in a titanosaurid (Nemegtosaurus), and twice the tooth size of taxa as Tapuiasaurus, Bonitasaura and Pitekunsaurus. Detailed descriptions of the tooth morphology and a highlight of comparative relationships among known titanosaur teeth are provided. Finally, different aspects are suggested related to morphology and feeding behavior.
Palabras clave:
Titanosaurio
,
Dientes
,
Formación Allen
,
Faceta de Desgaste
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Garcia, Rodolfo Andres; A giant tooth from the Late Cretaceous of Patagonia, Argentina: an enormous titanosaur or a large toothed titanosaur?; Academic Press Ltd-elsevier Science Ltd; Cretaceous Research; 41; 2-2013; 82-85
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