Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 5. 1974. (Budapest, 1974)

7. Globigerina ouachitaensis ouachitaensis - G. ouachitaensis ciperoensis evolution lineage Pl. X., figs. 3a-6c. This evolution lineage was recognized by BLOW and BANNER (1962). The transition was also recorded by BERGGREN in Northern Europe (1969b), and he figured some transitional forms, too. Transitional forms have been yielded by the upper three-quarters of the Kiscell Clay. The typical form appears in 20 m above the earliest transitional form, in Borehole Egerszalók-2. 8. Globigerina anguliofficinalis - G. angulisuturalis evolution lineage In the Hungarian Oligocène only the beginning of this evolution lineage can be studied. The initial form, which appears in the upper part of the Catapsydrax gortanii gortanii Zone of the Buda Marl is a small, stocky form, with five chambers in its last whorl. The forms collected from the Kiscell Clay already have a slightly deeper umbilicus, and the sutures are deeply depressed. The single specimen found in the basal Egerian is bigger as compared to the latters, its umbilicus is wider than that of the Rupelian forms, but the sutures still not so much depressed, compared with the typical Globige rina angulisuturalis. BERGGREN (1969b) originates this species from the Globigerina angustiumbilicata

. Is the polyphyletic origin of this species possible? SYSTEMATIC DESCRIPTIONS Superfamily: GLOBIGERINAC EA CARPENTER, PARKER et JONES 1862 Family: Chiloguembelinidae REISS 1963 Genus: Chiloguembelina LOEBLICH et TAPP AN 1956 Chiloguembelina cubensis (PALMER) Pl. I., figs. 4a-9b. 1934. Giimbelina cubensis PALMER - fide: ELLIS, B. F., MESSINA, A. R.: Catalogue of Foraminifera. This species persists in the whole Upper Eocene, and disappears a little below the Rupelian/Egerian boundary. Most common in the'Turborotalia increbescens and Globigerina postcretacea Zones.