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Globuligerina


Classification: pf_mesozoic -> Conoglobigerinidae -> Globuligerina
Sister taxa: Conoglobigerina, Globuligerina
Daughter taxa: (blue => in age window 0-800Ma)
Globuligerina avariformis

Globuligerina balakhmatovae

Globuligerina bathoniana

Globuligerina dagestanica

The original description by Morozova and Moskalenko (1961) mentions a highly variable morphology regarding the number of chambers in the last whorl, height of test and shape of the trochospire. Typically the diameter of the test is about the same as the height, or the test is higher than wide. As seen from the apex (first chambers) upwards to the third and last whorl, the test may be slightly triangular in outline. Up to 5 chambers in the initial (often very small) whorls and 3 to 4 in the final (third whorl) which increases rapidly in width and height; chambers subglobular in shape with straight sutures; the intra-umbilical aperture is a low to medium high symmetrical arch.


Globuligerina jurassica

Globuligerina oxfordiana

Globuligerina oxfordiana calloviensis

Globuligerina tojeiraensis

Globuligerina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Globuligerina Bignot and Guyader 1971
Rank: Genus
Basionym: Globigerina oxfordiana
Type species: Globigerina oxfordiana Grigelis, 1958

Original description: Diagnose. - Sous-genre de Globigerina se differenciant du genre et de ses autres sous-genres par son ouverture virguline, non parfaitement ombilicale et pourvue d'une petite levre.

Famille Globigerinidae. Jurassique superieur- Cretace inferieur(?).

Entries in the Catalog of original descriptions: Globuligerina

Distinguishing features: Wall smooth or pustulose but without reticulate pattern

Geological Range:
Last occurrence (top): within Tithonian Stage (145.01-152.06Ma, top in Tithonian stage). Data source: Total of range of species in this database
First occurrence (base): within Bathonian Stage (166.07-168.28Ma, base in Bathonian stage). Data source: Total of range of species in this database

Plot of range and occurrence data:

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Spiroconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Low-moderateperiphery:N/Aaperture border:
umb chbr shape:Globularumbilicus:periph margin shape:Broadly roundedaccessory apertures:None
spiral sutures:Moderately depressedumb depth:wall texture:Finely pustuloseshell porosity:Microperforate: <1µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:0.0-0.0 N.B. These characters are used for advanced search. N/A - not applicable

References:

Bignot, G. & Guyader, J. (1971). Observations nouvelles sur Globigerina oxfordiana Grigelis. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference, Roma 1970. Edizione Tecnoscienza, Roma 79-81. gs

Grigelis, A. A. (1958). Globigerina oxfordiana sp. n. – an occurrence of Globigerina in the Upper Jurassic deposits of Lithuania. Nauchnyye Doklady Vysshey Shkoly, Geologo-Geograficheskei Nauki. 1958(3): 109-111. gs

Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gs


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Globuligerina compiled by the pforams@mikrotax project team viewed: 25-10-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110199 Go to Archive.is to create a permanent copy of this page - citation notes



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