Salgótarján Coal Basin

Origin: Miocene.

Geomorphological features: The earliest European proboscideans (Prodeinotherium, Gomphotherium) were found in the Eggenburgian and Ottnangian formations of the Salgótarján coal basin; in addition to the lignite assemblage in the Ottnangian layers, rhinoceros (Aceratherium) and a rich paleoflora are also known from various former excavations of the former mining system. Currently, only the Eggenburgian strata can be studied on the surface.