Olasz kutatók ipolytarnóci ősorrszarvúk nyomában
Origin Miocene, Sarmatian.
The type area of the Sarmatian Kozardi Formation, typical of the area of the North Central Mountains, was excavated in a trench parallel to the eastern side of the highway leading from Kozárd to Alsótold, near the cemetery. The formation is a marine, semi-aquifer formed between the Badenian volcanites and the freshwater Pannonian formations. The formation is also rich in organic remnants, sometimes over-accumulated, trunks of petrified trees can be found.