Catalog - Globigerina edita polycamera

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina edita var. polycamera Khalilov 1956

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 -> Globigerina edita polycamera
Other pages this level: << < G. detrita, G. difformis, G. digitata, G. dinodensis, G. diplostoma, G. dissimilis, G. druryi, G. druryi decoraperta, G. dubia, G. dubia lakiensis, G. dubiata, G. dudrouensis, G. dutertrei, G. eamesi, G. edita, G. edita polycamera, G. eggeri, G. eggeriformis, G. elburganica, G. elevata, G. elongata, G. elongata Shutskaya, G. eocaena, G. eocaenica, G. eocaenica irregularis, G. esnaensis, G. euapertura, G. eugubina, G. eximia, G. exumbilicata, G. falconensis> >>

Globigerina edita polycamera

Citation: Globigerina edita var. polycamera Khalilov 1956
Rank: variety
Type locality: northeastern Azerbaidzhan S.S.R
Type age (chronostrat): Lower Paleocene, Danian
Type specimens: pl. 1, fig. 1a-c
Type repository: Baku; Geological Institute, Academy of Sciences, Baku, Azerbaijan
Described on page(s) : 235

Current identification:

Original Description
Translation from the Russian. - Test rounded, with a high spiral. Two or two and one-half whorls. In the last whorl there are six or seven spherical chambers. Sutures depressed, umbilicus deep. Test rounded, with a lobate periphery. Dorsal side strongly convex; the early chambers project most strongly. There are only two to two and one-half whorls. The spiral suture of the final whorl is strongly depressed . Chambers of the final whorl rather large, nearly spherical . Ventrally, the umbilical depression is well expressed, and is surrounded by six or seven spherical chambers of the last whorl, which slowly increase in size. Sutures between the chambers depressed, rather narrow, straight. Aperture slitlike, on the final chamber, flanking the umbilicus. Wall calcareous; the surface covered by dense, rather large pores.

Size: Diameter 0.23 mm.; thickness 0.16 mm.

Extra details from original publication
Comparison - Variation with age is expressed in the gradually in- creasing convexity of the dorsal side. Our form differs from the typical Globigerina edita Subbotina in the presence of a greater number of chambers in the last whorl and in the well-developed umbilicus. This variety is probably genetically related to the earlier Globigerina kelleri Subbotina, although the spiral of the latter is very high.


Khalilov, D. M. (1956). 0 pelagicheskoy faune foraminifer Paleogenovykh otlozheniy Azerbaydzhana [Pelagic Foraminifera of the Paleogene Deposits of the Azerbaizhan SSR]. Trudy Instituta Geologii, Akademiya Nauk Azerbaidzhanskoi SSR. 17: 234-255. gs


Globigerina edita polycamera compiled by the pforams@mikrotax project team viewed: 19-9-2021

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