“…2 The theropod record of the Upper Cretaceous Portezuelo Formation (Late Turonian-Early Coniacian; Leanza et al, 2004) currently consists of the abelisaurid Ekrixinatosaurus novasi (Calvo et al, 2004a), the basal tetanuran Megaraptor namunhuaiquii (Novas, 1998;Calvo et al, 2004b), the maniraptoran alvarezsaurid Patagonykus puertai (Novas, 1997), two yet undescribed coelurosaurians (Coria & Currie, 2002;Porfiri et al, 2005), and the dromaeosaurid maniraptorans Unenlagia comahuensis (Novas & Puerta, 1997), U. paynemili (Calvo et al, 2005), and Neuquenraptor argentinus (Novas & Pol, 2005). Here we describe a partial humerus that constitutes the first non-abelisaurid abelisauroid recorded in the Portezuelo Formation.…”