Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 8. 1977. (Budapest, 1977)

Loc. 1. Osztramos An above broad, at the bottom narrowing and bifurcated, about to fourty meters hight opened fissure, filled up to the top with dark-red sediments represents the locality. Only some small pockets, - found on different places of the fissure, - yielded a vertebrate microfauna (labeled from "a" to "f"). We compiled the list of discovered fossil species in a table (see Hungarian text P )• After a new revision, we have to suppose that, the material, published at first from Osztramos (KRETZOI, 1956) belongs to the same locality or is at least of the same age (revised faunal list see p. ). All of the partial localities seem to be geologically nearly of the same age i. e. Middle Pliocene and may be ranked with the newly established stratigraphical unite Estramontium (JÁNOSSY, 1972e). Loc. 2. Osztramos It was before blasting off a fourteen meters high and twenty meters long fossil cave filled up with red clay containing sporadically large stalagmitepiles. About 2. 50- 3.00 meters above the quarry level it was to be found a layer very rich in bones, which we washed in its entirely. We give on this place at first a preliminary list of the collected material (see p. ). The faunistical picture proves to be of younger Lower Pleistocene age, Betfian Phase, somewhat younger, as the Loc. 8. discussed in this paper below. Loc. 3. Osztramos Only 5-6 meters distant from Loc. 1. , a cave developed in the direction of the same strike as the former one, showed during the excavations a profil of 10 meters hight and 5-6 meters width. The colour of the upper layers of the sediment were yellowish and the lower levels became homogeniously reddish, with some hematite-pebbles of 5, 0-0, 2 mm diameter. Among the collected rich vertebrate material are some Rodents from the point of view of the systematics and evolution of this group very important. On one hand the rich material of a quite new genus and species of anEomyid (Estramomys simplex Jánossy, 1969) belonging to a family believed former to be extinct at the end of the Miocene, being of unique nature. On the other hand the very well preserved remains of Mimomys skulls fossilized often together with the mandibles shed new light upon the systematics of this group (JÁNOSSY, 1973, JÁNOSSY-MEULEN, 1975). The age of the fauna is unambiguously of middle Lower Pleistocene ("Middle Villafranchian"

, UpperVillanyian) and it represents a new stratigraphical level (level of Torna). Loc. 4. and 5. Osztramos Both localities lie in the part of the mining area Nr. X. Loc. 4. lies on the North-North-Western edge of the mentioned quarry-section and represents