Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 21. 2003. (Budapest, 2003)

FRAGMENTA PALAEONTOLOGICA HUNGARICA 21, BUDAPEST, 2003 Five new species of benthic Foraminifera from the Hungarian Palaeogene Basin by Péter OZSVÁRT Abstract — Five new Eocene species of benthic Foraminifera are described from 3 boreholes (Csákberény 89, Devecser 4, Csetény 61) and from the classical Upper Eocene section of Mátyás-hegy, Budapest, Hungary. The new species are Textularia tuberosus, Pjrgo microstriatus, l^agena clava, Epistomaroides costatus and Gyroidinoides koestleri. Keywords — Benthic Foraminifera, new species, Eocene, Hungary. OZSVÁRT, P. (2003): Five new species of benthic Foraminifera from the Hungarian Palaeogene Basin. — Fragmenta Palaeontologica Hungarica, 21: 1—4. Introduction Fourteen Middle and Upper Eocene (Lutetian-Priabonian) sections from the Hungarian Palaeogene Basin were investigated for their benthic foraminiferal content to reconstruct the palaeoecological and palaeooceanographic development during the final stages of the evolution of the Tethyan Realm (OZSVÁRT, in press). Three hundred and thirty benthic Foraminifera species have been recognized in twelve borehole sections and in two outcrops. Five of the studied species are new. Figure 1 — Location of cores Devecser-4; Csetény-61; Csákberény-89 and the Mátyás-hegy section. Material and methods For the present study, samples from three boreholes (Csákberény 89, Devecser 4, Csetény 61) and from an outcrop (Budapest, Mátyás-hegy, western quarry) were investigated (Figure 1). Cores were sampled by the staff of the Hungarian Geological Institute, where samples were washed and picked for benthic Foraminifera. Samples of Mátyás-hegy section were taken by Prof. Miklós MONOSTORI. Systematics Subfamily and higher classification in this paper follows that of LOEBLICH & TAPPAN (1988).