"A. atacis" is known from a few, well-preserved teeth and some cranial material, a tooth of which was described in its original description. The teeth differentiate "Ampelosaurus" from "Magyarosaurus" and "Lirainosaurus", both of which are also from Europe. The teeth are different from the two later genera as "Ampelosaurus" has teeth that are roughly cylindrical in the top with thin expansions at the bottom. They are high and about wide. Those expansions give its teeth a slight constriction between the root and the crown. The teeth are also quite different from the peg-like teeth of titanosaurids. The teeth, have a general morphology similar to titanosaurians "Antarctosaurus" and a braincase from Dongargaon. Another skull was described from southern France, but showed some differences, meaning there could have been at least two different titanosaurians in France during the Late Cretaceous.