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Conoglobigerina balakhmatovae


Classification: pf_mesozoic -> Conoglobigerinidae -> Conoglobigerina -> Conoglobigerina balakhmatovae
Sister taxa: C. avarica, C. avariformis, C. balakhmatovae, C. caucasica, C. conica, C. dagestanica, C. gulekhensis, C. jurassica, C. meganomica, C. terquemi,

Taxonomy

Citation: Conoglobigerina balakhmatovae (Morozova in Morozova & Moskalenko, 1961)
Rank: Species
Basionym: Globigerina (Eoglobigerina) balakhmatovae

Type images:

Original description: Globigerina (Eoglobigerina) balakhmatovae Morozova, in Morozova & Moskalenko 1961: DiagnosisEoglobigerlna with a low spiral, consisting of two whorls. The first whorl comprises three to five <uld one-half chambers, and the final whorl conti'lins f o111' chambers. Wall thin, finely porous

Description - Test small, low, its height approximately one-half the diameter. Spiral, formed by two whorls. The final whorl is two or three times higher than the first and consists of four rapidly increasing chambers which are slightly compressed along their height. The first whorl- consists of three to five and one-half chambers. Sutures between chambers weakly depressed, straight; those between the chambers of the first whorl sometimes slightly oblique. Aperture single, small, rounded, rimmed by a. narrow, weakly expressed lip. Wall thin, radiate, finely porous. Surface smooth, shiny or matte.

Entries in the Catalog of original descriptions: Globigerina (Eoglobigerina) balakhmatovae;

Geological Range:
Last occurrence (top): within Bathonian Stage (166.07-168.28Ma, top in Bathonian stage). Data source: [copied from Chronos database]
First occurrence (base): within Bajocian Stage (168.28-170.30Ma, base in Bajocian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

NB Plotting of Neptune data has been disabled on the Mesozoic pages because the dataset is both small and badly affected by a few sites with erroneous age models (our obs Huber, Petrizzo, Young, Nov 2016). The data can still be viewed via the range plottertool - tools menu.

References:

Morozova, V.G. & Moskalenko, T.A., (1961). Foraminiferes planctoniques des depots limitrophes du Bajocien et du Bathonien du Daghestan central (Nord-Est du Caucase). Voprosy Mikropaleontol., U.S.S.R., 5: 3-30.


Conoglobigerina balakhmatovae compiled by the pforams@mikrotax project team viewed: 29-5-2017

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