In the "frazione" of Fiume Santo in 1994 has been find a lot of animal fossils presumably dated at the Miocene. Some 8/9 millions years old rests of Oreopithecus bambolii has been find in the same area. The discovering has started casually thanks to some hobbyist paleontologists that have noticed after some maintenance works in the near thermal power station the presence of some fossils in the excavation debris. In the area has been individuated 15 vertebrate species like giraffes, crocodiles, turtles, suidae and Mustelidae. Most of these animals like the Umbrotherium azzarolii were herbivorous, but some others like the Indarctos anthracitis were omnivores.