[3] In the following year, a first level of continental sedimentary remains was found at a depth of 250 metres, with the following archaic tree species: Taxodium, Sequoia, Magnolia, Symplocos and Sapotaceae.

[3][4] Deer fossils have also been found in Aulla, from the Procaproleus causanus and Pseudodama pardinensis lyra species which in the Western Europe "are characteristic of the mammal assemblages of the Early [Villafranchian" period (3.5-1.0 Ma).

They built the Brunella Fortress [it], which was bought in the early 20th century by Aubrey and Lina Waterfield, and remains privately owned, functioning as a museum of natural history for the Lunigiana region.

By the end of the war large sections of the city were obliterated by Anglo-American bombings which sought to destroy the town's key railroad network and gunpowder manufacturing plant.

In April 1945 the 442nd Infantry Regiment (United States), aided by a significantly strong Italian partisan fighting force, liberated the city of Aulla, after fierce battles with retreating German troops.