  In this paper we find monomial bases for the integer cohomology rings of
compact wonderful models of toric arrangements. In the description of the
monomials various combinatorial objects come into play: building sets, nested
sets, and the fan of a suitable toric variety. We provide some examples
computed via a SageMath program and then we focus on the case of the toric
arrangements associated with root systems of type A. Here the combinatorial
description of our basis offers a geometrical point of view on the relation
between some Eulerian statistics on the symmetric group.
