Nuevos mamíferos vallesienses en Masía de La Roma (Cuenca de Teruel)

Abstract

The number of upper Vallesian (continental Upper Miocene) localities in the Teruel-Alfambra area has been increased by the sampling of a new road cut at Masia de La Roma. Two new levels have been sampled (MR-604-A and MR-604-B), which both belong to local Zone J3 (9.4-9.0 Ma) and correspond to Neogene mammal unit MN10. The levels have yielded the youngest representative of the viverrid Semigenetta and the oldest ursid Indarctos atticus known thus far, although it should be noted these forms are rare in general. The small mammal fauna contains characteristic J3 forms such as Huerzelerimys minor and Crusafontina fastigata. The two levels show a difference in small-mammal relative abundances, which could be due to factors related to formation of the sites (characteristics of the predators responsible for the concentration of the skeletal elements)