Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 3. 1972. (Budapest, 1972)
1961 Globorotalia convexa SUBBOTINA . - SAID & KSRDANY, p. 329, pl. 1, fig. 7. 1964 Globorotalia convexa SUBBOTINA. - SAID & SABRY, p. 383, pl. 3, fig. 17. 1966 Globorotalia cf. convexa SUBBOTINA. - EL NAGGAR, p. 205, pl. 22, figs. 3a-c. Description: Test large, rounded, low ti oc h.spiral , biconvex, composed of 2 ^ whorls, the final whorl is composed of 5 large inflated chambers, initial chambers are small, they increase moderately in size as added. Equatorial periphery lobate, axial periphery rounded. Wall calcareous perforate, surface rough, finely spinose. Sutures depressed, slightly curved on the dorsal side straight on the ventral side. Umbilicus small. Aperture a low arch, extraumbilical- umbilical, bordered by a narrow delicate lip. Diameter: 0,32 - 0,37 mm O ccurrence : In the Taramsa section, this species appears in the C. uncinata zone and continuée until the G. velascoensis zone. Stratigraphie range: This species we s first described by SUBBOTINA (1953)f rom the zone of conical Globorotalias (lower-middle Eocene) in northern Caucasus. According to SUBBOTINA the range of this species is from Danian-middle Eocene. LOEBLICH & TAPPAN (1957) recorded this species from the Paleocene of the Gulf and Air antic Coastal Plain and from the Velasco formation of Mexico. This species has been identified by OLSSON (i960) from the earliest Tertiary in the New Jersey Coastal Plain. In Egypt Z. convexa was recorded by SAID & K ERDAN Y (196I) from the upper Paleocene oî the Parafra Oasis. It was also described by SAID & SABRY (1964) from the G. pseudomenardii zone and the basal part of G. velascoensis zone of Gebei. Aweina, Egypt.
