Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 5. 1974. (Budapest, 1974)
Fragm. Min. et Pal. 5. 1974. Paleogene Planktonic Foraminiferal Zones in Northeastern Hungary Károly SZTRÁKOS Research Laboratory of the Hungarian Oil and Gas Trust, Budapest ABSTRACT: The planktonic foraminiferal faunas studied by the author parly from the surroundings of Budapest, and partly from the southern foreland of the Bükk Mountains (NE-Hungary) . He had established, that the fauna of the Eocene strata appears with the Mediterranian region, and the fauna of the Oligocène strata with the Northeuropean region to be connection. The author based five new zones on Uppermost Eocene-Oligocène . He observed two new evolutional lines in this profiles (Turborotalia loverovskae - T.brevispira and T. munda, T. obesa is transitional). Among the 47 determined species and subspecies is described a new: Turborotalia munda franzenaui n. ssp. INTRODUCTION The planktonic foraminiferal faunas studied by the writer came from two different areas, i.e. partly from excavations and preliminary drillings for building activities in the surroundings of Budapest, and partly from hydrocarbon prospecting boreholes in the southern foreland of the Bükk Mountains (NE-Hungary) . The plankton foraminifers from the profiles of five exposures, ten drillings and two deep boreholes around Budapest, and nine deep boreholes from the Bükk foreland have been determined. The localities are shown in Fig. 1. 150, 215 and 40 of the studied samples are of Upper Eocene-Lower Oligocène, Middle Oligocène and Upper Oligocène in age, respectively. The other samples yielded no remarkable planktonic fauna. The paleontological descriptions follow the systematics elaborated by LIPPS, J. H. (1966). The writer wishes to express his acknowledgement to Dr. BODA, J. , JÓZSA, L. and Dr. KRIVÁN, P. for kindly putting the materials of the drillings around Budapest at his disposal. The writer is grateful to Prof. Dr. E. MARTINI who has determined nannoplankton material of some samples.
