Catalog - Globigerina (Eoglobigerina) pentagona Catalog - Globigerina (Eoglobigerina) pentagona

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina (Eoglobigerina) pentagona Morozova 1961

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 -> Globigerina (Eoglobigerina) -> Globigerina (Eoglobigerina) pentagona
Other pages this level: G. (Eoglobigerina) balakhmatovae, G. (Eoglobigerina) bizkaiensis, G. (Eoglobigerina) eobulloides, G. (Eoglobigerina) hemisphaerica, G. (Eoglobigerina) pentagona, G. (Eoglobigerina) prebetica, G. (Eoglobigerina) taurica, G. (Eoglobigerina) tetragona, G. (Eoglobigerina) theodosica, G. (Eoglobigerina) trifolia

Globigerina (Eoglobigerina) pentagona

Citation: Globigerina (Eoglobigerina) pentagona Morozova 1961
taxonomic rank: Species
Type specimens: holotype (fig. 3a-c) 3510/6.
Type sample (& lithostrat): in a gray clayey marl. Massive number of specimens.
Type age (chronostrat): Lower Danian (Uylin substage), corresponding to the lower part of the Globigerina stage of Western European authors, Dn 1 I Zone (Globigerina (Eoglobigerina) taurica Zone):
Type locality: Tarkhankhut Peninsula, eastern Crimea, southern Russia. Also found in the Caucasus.
Type repository: Moscow, Inst. of Geol. Sci. of the Academy of Sciences

Current identification/main database link: Eoglobigerina edita (Subbotina 1953)


Original Description

Translation from the Russian. - Spire of the test quite high, consisting of two to two and a half whorls with five chambers in each. Chambers gradually inflated, slowly increasing in size. Spiral side lowly conical, umbilical side slightly concave in the center, with a slit-shaped prolongation along the marginal suture. Wall smooth, finely perforate. Surface lustrous. 

Size:
Greatest diameter 0.38, least diame ter 0.29, height 0.30 mm.

Extra details from original publication
Variability. - The height of the spire and the number of chambers in the last whorl (4.5-5) vary over small limits.
Comparison. - This species differs from Globigerina (Eoglobigerina) tetragona Morozova by the greater number of chambers in the last whorl and the relatively lower spire, from G. (Eoglobigerina) edita Subbotina and G. (Eoglobigerina) theodosica Morozova by the conical form of the spiral side and by the greater height of the test.

References:

Morozova, V. G. (1961). Datsko-Montskie planktonnye foraminifery yuga SSSR [Danian-Montian Planktonic Foraminifera of the Southern USSR]. Paleontologicheskiy Zhurnal. 8-19. gs O

Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Institution Press, Washington, DC. 1-252. gs


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Globigerina (Eoglobigerina) pentagona compiled by the pforams@mikrotax project team viewed: 2-3-2024

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