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REVISTA
Andean Geology

   
Inicio  /  Andean Geology  /  Vol: 36 Núm: 1 Par: 0 (2009)  /  Artículo
ARTÍCULO
TITULO

Remains of Alvarezsauridae (Theropoda, Coelurosauria) in the Alien Formation (Campanian-Maastrichthian), in Salitral Ojo de Agua, Río Negro Province, Argentina.

Leonardo Salgado    
Rodolfo A. Coria    
Andrea B. Arcucci    
Luis M. Chiappe    

Resumen

We present new remains from the Cam-panian-Maastrichtian beds of the Alien Formation, in Salitral Ojo de Agua (Río Negro, Argentina), which are assignable to Alvarezsauridae indet. This clade of small coelurosaurian theropods is known from strata of similar age in Mongolia, and from older sediments (Turonian and Coniacian in age) in Argentina. Thus, the material presented here extends the temporal record of the alvarezsaurids from the Southern Hemisphere up to the Latest Cretaceous. The fossil bones reported were associated to eggshells of the oofamily Elongatoolithidae, which are actually attributed to Theropoda.

PÁGINAS
pp. 67 - 80
MATERIAS
INFRAESTRUCTURA

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