[N] 2005 New theropod dinosaurs from Auca Mahuevo
Rodolfo A. CORIA y Andrea B. ARCUCCI, Nuevos dinosaurios teropodos de Auca Mahuevo, Provincia deI Neuquén (Cretacico tardio, Argentina), AMEGHINIANA
(Rev. Asoc. Paleontol. Argent.) - 41 (4): 597-603. Buenos Aires, 30-12-2004.
Abstract. NEW THEROPOD DINOSAURS FROM AUCA MAHUEVO, NEUQUEN PROVINCE (LATE CRETACEOUS, ARGENTlNA). Materials, of Theropoda from the upper levels of the Anacleto Formation and the upper levels of the underlaying Bajo de la Carpa Formation are described. The specimens were collected from I1crocks outcropping at Auca Mahuevo locality and surroundings, a paleontological area from Neuquén Province that yielded abundant remains of titanosaur eggs and embryos. Some of the teeth were collected associated with adult titanosaur bones, \\\\\\\'at the same levels that bear titanosaur nests. These teeth have features comparable with the dromeosaurid morphotype, and share several characters with the teeth of the abelisaurid Aucasaurus garridoi Coria et al., the only theropod species described and illustrated from the l site. Isolated postcranial material from the underlaying Bajo de la Carpa Formation have been assigned to theropod dinosaurs but lack Abelisauridae derived features, being better linked with basal tetanuran forms, with sizes comparable with those of carcharodontosaurids.