New alvarezsaurid paper

[Dan Chure <danchure@easilink.com>]

New theropod pdf.

Dan

Restos de Alvarezsauridae (Theropoda, Coelurosauria) en la Formación 
Alien (Campaniano-Maastrichtiano), en Salitral Ojo de Agua, Provincia de 
Río Negro, Argentina*

*Leonardo Salgado 1 , Rodolfo A. 1 Leonardo Salgado, Rodolfo A. Coria 2 
, Andrea B. Coria 2, Andrea B. Arcucci 3 , Luis M. Arcucci 3, Luis M. 
Chiappe 4 Chiappe 4

*ABSTRACT. *We present new remains from the Campanian-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.

http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062009000100006&lng=en&nrm=iso&tlng=es