Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 5. 1974. (Budapest, 1974)
Turborotalia munda franzenaui n . subsp . PI. TV., figs. la-2c. Holotype: PI. rv., figs, la-c, Borehole Egerszalók-2a., 367-373. m, deposited in the collection of the Paleontological Department of the Hungarian Museum of Natural History, depository number: M 73.178. Material: One specimen (PI. rv., figs. 2a-c.) from the Castle Hill of Buda (Hunyadi J. Street, 150 m in front of the Royal Palace, one specimen from Borehole Egerszalók-2a, 354, 5-362,4 m. Depository numbers: M 73.177. Stratum typicum: Lower part of the Kiscell Clay (Middle Oligocène) . Derivatio nominis : In honour of the Hungarian micropaleontologist Ágoston FRANZENAU. Description of the holotype : Test free, medium-size, comprises two whorls, with five chambers in the last whorl. The chambers of the first whorl are hardly visible. The chambers of the last whorl increase slowly and evenly in size. The spire slightly raised above the plane of the last chambers. The inflate chambers are separated by deep sutures. The sutures are straight and radial on both the ventral and dorsal side. Umbilicus small, deep. Aperture is a high, interiomarginal opening from the umbilicus to the periphery, bordered in whole length by a broad, thick lip, with the broadest part in the center. Wall moderately coarsely perforate, surface finely hispid. Measurements of the holotype: Greatest diameter: 0,30 mm. Height: 0,20 mm. Remarks : The number of the chambers of the last whorl may differ between 5 and 6; the dorsal surface may be completely smooth. It differs from the subspecies Turborotalia munda munda (JENKINS) in its more inflate chambers, more loose coiling, deeper umbilicus and higher aperture having a thick, distinct lip. The number of chambers in this new subspecies is 5 to 6 (4 to 5 in T . munda munda ) . This new form differs from the young Globorotaloides suteri BOLLI specimens in the more inflate chambers, the slightly finer perforation and the higher apertural arch. This new subspecies originates presumably from the Turborotalia munda munda, i.e. the Kiscell Clay yielded specimens which resemble the T . munda and bear very high aperture, four chambers and loose coiling (PI. rv., figs. 3a-4b) Distribution: This form have been found very rarely in the lower part of the Kiscell Clay so far. Turborotalia munda Zone, Budapest, southern foreland of the Bükk Mountains. Turborotalia opima nana (BOLLI) Pl. V., figs, la-c, 3a-c. 1957b. Globorotalia opima nana - BOLLI, p. 118., PI. 28., figs. 3a-c. This form appears commonly whole in the profile, from the Turborotalia cocoaensis up to the Turborotalia obesa Zone.
