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)