L. Hably szerk.: Studia Botanica Hungarica 22. 1990 (Budapest, 1990)

Fig. 1. Location of the plant locality THE STRATIGRAPHICAL RELATIONS OF THE SITE There was no real possibility for investigating the exact stratigraphical position of the site during the first collection, because of the largescale construction works. On one side, of the road, however, an artificial exposure was opened, on which the layers associated with the plant remains can be fairly well observed. In course of the collection it could only be observed that the floristical remains originated from a more clayey part of the sandy rock from two areas, that were of 20 x 5-6 m each. The direction of the artificial exposure is 120/300 . Four kinds of lithological varieties can be separated in them, which are, however, not strictly differentiated. All of them belong to the same lithostratigraphical unit, the Many Formation. In the lowermost parts of the exposure lasting till about 74 m we can find unit 'A' consisting of small size gravel comprising pebbles of 2,0 cm maximal diameter, badly sorted, obliquely stratified rough sandstone, intercalating with rough sandstone with pebble lenses. Unit 'B', comprising rough grained sandstone as well, is found between 74-89 m, with limonitic incrustation at the splitting planes. The length of this unit is 15 m in our section. At the following 7 metres again we find the rocks of unit 'A', followed by 57 m long phase of unit 'B' comprising 3 intercalations of gravel of half metres each. These are followed by another unit marked 'C' of roughly 20 m length. This is a medium fine grained sandstone comprising more clayey components than the previous ones, "with large concretions of rough sandstone.