CATALOG OF ORIGINAL DESCRIPTIONS: Turborotalia munda franzenaui Sztrakos 1974

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: pf_cat -> T -> Turborotalia -> Turborotalia munda franzenaui
Other pages this level: T. altispiroides, T. bannerblowi, T. bykovae, T. cambayensis, T. centralis perfecta, T. clemenciae, T. czeczvaensis, T. hirsutoides, T. kotarduensis, T. lata, T. munda franzenaui, T. pseudoampliapertura nukhulensis, T. pseudoampliapertura sinaiensis, T. pseudobesa, T. vagalkhodensis

Turborotalia munda franzenaui

Citation: Turborotalia munda franzenaui Sztrakos 1974
Rank: sub-species
Type locality: udapest, southern foreland of the Bükk Mountains.
Type age (chronostrat): Middle Oligocene
Type sample (& lithostrat): Borehole Egerszalók-2a., 367-373. m; lower part of the Kiscell Clay
Type specimens: PI. IV., figs. la-2c. Holotype: PI. IV, figs, 1a-c; depository number: M 73.178.
Type repository: Budapest; Paleontological Department of the Hungarian Museum of Natural History

Current identification:

Original Description
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 rai- sed 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. Umbi- licus 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.

Size: Measurements of the holotype: Greatest diameter: 0,30 mm . Height: 0,20 mm .

Etymology: In honour of the Hungarian micropaleontologist Ágoston FRANZENAU.

Extra details from original publication
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. IV, 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.


Sztrakos, K. (1974). Paleogene planktonic foraminiferal zones in northeastern Hungary. Fragmenta mineralogica et palaeontologica. 5: 29-80. gs


Turborotalia munda franzenaui compiled by the pforams@mikrotax project team viewed: 30-7-2021

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