Análisis preliminar de un nuevo yacimiento de vertebrados fósiles (Arenal del Ángel-3), eoceno medio, formación areniscas de Cabrerizos (Salamanca, España): estratigrafía y contenido paleontológico

Cabrerizos Sandstone Formation, middle Eocene, is one of the richest paleontological (reptiles and mammals) lithostratigraphic units of the Duero basin. It represents a fluvial system that evolve thought time and space that constituted, by the own dynamics of the system, traps for vertebrate remains accumulations. These deposits were originated by the infilling of ponds or abandoned channels due to the overflow of the principal, active channel or, due to the development of megabodies inside these channels during the active stage. Is in this latter context where the macrovertebrate fossil bed AA-3 is formed. In this study, the fallen blocks have been identified and correlate with their original levels and the fossil remains have been study. The study and the analysis of the fossil remain will improve the knowledge of the fossil content and also, can help for a future, more detailed, datation of the Formation that could be obtained from them.