Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 5. 1974. (Budapest, 1974)
Fragm. Min. et Pal. 5. 1974. New "Middle Pliocene" Microvertebrate fauna from Northern Hungary (Osztramos Loc. 9) Dénes JÁNOSSY Hungarian Natural History Museum Paleontological Department, Budapest ABSTRACT: The author describes a new locality from the Osztramos Hill, Northern Hungary, namely Loc. 9. A detailed analysis of its microvertebrate fauna proves a Middle Pliocene age, older than the Uppermost Pliocene animal assemblages known to the present in Western and Eastern Europe as well (Perpignan, Csarnóta, Ivanovce etc. ), but considerably younger that the classical Lower Pliocene (Pannonian, Pikermian etc.) faunas. It represents therefore a new microstratigraphical unite in Eastern Europe. There are described three new species: Muscardinus giganteus n.sp., Promimomys microdon n. sp. and Mimomys silasensis n. sp. seemingly characteristical for the age represented by the microfauna of the new locality . In recent years there were dicoveredi in the quarry system of the Hill Osztramos (in the neighbourhood of the villages Bódvaszilas, Bódvarákó and Tornaszentandrás, cca. 50 km North of the town Miskolc) fifteen different localities, represented by fissures and caves with rich faunas originating from the Middle Pliocene up to the Middle Pleistocene, as mentioned in my previous papers (JÁNOSSY, 1970, 1972a, 1972b, etc.). This time I want to make known shortly the fauna of a new locality, which - as we will see below, - represent a new microstratigraphical unit. This is the locality, labeled with number 9. From the point of view of karstmorphology is the locality 9. very peculiar. There is a series of cavities (opened up recently about two hundred meters long) filled up partially by a 2-3 meters thick calcite and containing an intercalated, cemented, yellow coloured bone-bearing clay. This is up to the present day known oldest - not ruined - cave-system of Hungary and perhaps of whole Europe. A part of the series of cavities consists the geologically contemporaneous Locality 13., which yielded, - among a lot of bones of bats, - only the recently described new species of a small shrew (Episoriculus tornensis JÁNOSSY, 1973). The other part of the locality-system, labeled as Loc . 9. contains chiefly a bat-fauna too, but the accompanying animal assemblage represents a small (very fragmentary) but very characteristic microvertebrate assemblage as follows (preliminary determinations): Piscis indet. Amphibia -Reptilia
