Catalog - Globuligerina meganomica

CATALOG OF ORIGINAL DESCRIPTIONS: Globuligerina meganomica Kuznetsova in Kuznetsova & Uspenskaya 1980

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 -> G -> Globuligerina -> Globuligerina meganomica
Other pages this level: G. altissapertura, G. bathoniana australiana, G. bathoniana gigantea, G. calloviensis, G. caucasica, G. frequens, G. glinskikhae, G. gulekhensis, G. hungarica, G. meganomica, G. neilii, G. parva, G. parva Kuznetsova, G. stellapolaris, G. tojeiraensis, G. umbilicata, G. waskowskae

Globuligerina meganomica

Citation: Globuligerina meganomica Kuznetsova in Kuznetsova & Uspenskaya 1980
Rank: Species
Type specimens: 4626/2
Type age (chronostrat): Lower Callovian, Macrocephalites macrocephalus Zone
Type locality: Eastern Crimea, Meganom peninsula, 1 km to south from village Archaderes
Type repository: Not available

Current identification:


Original Description

Translated from Russian: Test small, trochospiral, consists of two whorls. 4 chambers in an inner whorl, 3-4 chambers in the last whorl. The chambers are closely packed in an inner whorl, and become less compact in the last whorl. Periphery widely rounded. Contour lobate. Sutures slightly depressed and slightly curved. Aperture umbilical with thin lip. Test calcareous, finely porous. Pores are of two types: small and dense (0.4 - 1 microns) and large up to 5 microns. Surface covered with pustules and cells. Cells are irregular and spread everywhere.

Size:
Holotype measures: D1 0.19 mm, D2 0.14 mm, H 0.1 mm, compressing index D1 : H 1.9. Varies in compression index (2.0 ->1.7), in size of an inner whorl which is usually not more that ⅓ D1, although sometimes it reaches to a half of D1, and in having additional small chambers (1-2) on the umbilical sides of some specimens, covering an aperture and umbilicus.

Etymology:

Extra details from original publication

Editors' Notes
Gradstein et al. (2017) consider it likely "that if good material was available these obscure taxa would be synonymized under better documented species".

References:

Gradstein, F. M., Gale, A. S., Kopaevich, L., Waskowska, A., Grigelis, A. & Glinskikh, L. (2017b). The planktonic foraminifera of the Jurassic. Part I: material and taxonomy. Swiss Journal of Palaeontology. 136(2): 187-257. gs V O

Kuznetsova, K. I. & Uspenskaya, E. A. (1980). Novie nakhodki planktonnikh foraminifer v verkhneyurskikh otlozhenii Krima [New finds of planktonic Foraminifera in the Upper Jurassic deposits of the Crimea]. Doklady Akademii Nauk SSSR. 254(3): 748-752. gs


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Globuligerina meganomica compiled by the pforams@mikrotax project team viewed: 3-12-2022

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