Remains of fossil vertebrates emerging on the surface at the Cauca site. Skull (A), pelvis (B) and appendicular elements (C) of megatheriid Eremotherium. A, C. correspond to unexcavated S2 (see Fig. 1B). Upper molars (D) of gomphoteriid Notiomastodon platensis, with the root completely eroded, associated with the mandible AMU-CURS-1269 from Cauca “A” (Fig. 1B).