An important testimony from the Imperial Age

We cannot set aside the hypothesis that curved backward circular horns were amongst those characteristics being shared by certain ancestral goat breeds. I personally believe that, in some regions, animals with mixed characteristics (flat-divergent horns and cylindrical backwards horns) have coexisted and have been raised indistinctively by local populations since Roman times and, perhaps, even during earlier periods. It is worth noting that, according to numerous archaeological and topographical findings, transhumance routes —in South-Central Italy— were well developed even before the II century B.C. 

During Roman and pre-Roman times these routes, linking Rome with the mountainous territories of central-southern Apennines, have continued to represent a central axis of communication for the movement of goats, sheep, and other livestock, through medieval and modern times. In this regard, it is worth referring to this bucolic mosaic of the second century A.D. located in Villa Adriana, a Roman imperial residence in Tivoli (Lazio). Clearly as it appears, the mosaic only includes goats with erect ears and slightly curved backwards horns.