Nineteen Middle Miocene (Badenian and Sarmatian) microvertebrate faunas were collected
by the first author in quantities of several tons of samples in the Northern Hungary
region and from the Visegrád Mountains in Transdanubia over the last two decades.
Sample materials were washed and sieved using the sieve system of Daams & Freudenthal
(1988). The study of these new faunas resulted in numerous taxonomic, paleobiogeographic
and biochronologic conclusions (Hír 2020, Hír et al. 2016, 2017 and references therein),
as well as lithostratigraphic and geochronologic results. The main purpose of this
paper is to present and discuss the latter relationships.
