Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 3. 1972. (Budapest, 1972)

open. Aperture a slit like interiomarginal

, extraumbilical-i umbilical . Diameter: 0,53 mm Occurrence : Some specimens of this species occur in the G. pse udomenardii zone (sample no. 6) in the Taramsa section. Stratigraphie range: This species was first described by LOEBLICH & TAPPAN (1957) from the Gulf and Atlantic Coastal Plain. They considered it to be of upper Landenian of Sparnacian age. EL NAGGAR (1966) recorded this species from the upper most part of G. velascoensis zone of the Esna - Idfu region, Nile Valley, Egypt, he considered it to be of upper Paleocene age. Globorotalia marginodentata SUBBOTINA (pl. XI, fig. 2. ) 1953 Globorotalia marginodentata n. sp. - SUBBOTINA, p. 212213, pl. 17, fig. 15a-c; l6a-c. 1964 Globorotalia marginodentata SUBBOTINA. - LUT ERBACHER

, p. 673, textfigs. 75, 76, 81-84. Description : Test medium, spiral side slightly convex, umbilical side strongly convex. Periphery lobulate with a keel. Umbilicus open. Wall perforate, surface spinose, especially along the periphery. Occurrence : G. marginodentata appears at the top of the G. ve lascoensis zone. It floods the basal part of the Eocene limestone, together with G.aequa

, characterizing the G. aequa / mar ginodentata zone of Ypresian age. Stratigraphie range: Globorotalia marginodentata was first described from the Kuban river section (Central Northern Cauca-