pforams@mikrotax - Globuligerina pforams@mikrotax - Globuligerina


Classification: pf_mesozoic -> Conoglobigerinidae -> Globuligerina
Sister taxa: Conoglobigerina, Globuligerina, Petaloglobigerina
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Globuligerina avariformis

Globuligerina balakhmatovae

Globuligerina bathoniana

Globuligerina dagestanica

Globuligerina glinskikhae

Globuligerina jurassica

Globuligerina oxfordiana

Globuligerina oxfordiana calloviensis
Globuligerina oxfordiana subsp. oxfordiana

Globuligerina tojeiraensis

Globuligerina waskowskae

Globuligerina sp.
Specimens which cannot be assigned to established species


Citation: Globuligerina Bignot&Guyader 1971
taxonomic rank: Genus
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:
Parent taxon (Conoglobigerinidae): Small (<200µm), microperforate wall, 3-4 globose chambers in final wall, aperture umbilical
This taxon: Wall smooth or pustulose but without reticulate pattern

Test trochospiral, low to medium to high spired (H/D ratio varies between 0.5 and 1.5). Mostly 4 and rarely 3–4 or only 3 chambers in the last whorl. Chamber shape globular or somewhat flattened, or may be oblong, elongated in a radial sense. Chambers rarely show an equatorial imperforate band. Apertural shape variable; often a medium to high arch; the arch may be an asymmetrical arch or comma shaped; aperture rarely a slit; aperture position mostly umbilical, but may be slightly extraumbilical. The aperture has a thickened and imperforate rim (lip) that may circle the aperture (as observed in well-preserved G. oxfordiana). Wall microperforate, smooth to pustulose; pustules may be pointed (pseudomuricae), or blunt; pustules may have pore mounds; pustules may fuse to form ridges.

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 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): at top of Early Tithonian Substage (100% up, 145Ma, in Tithonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Bajocian Stage (168.17-170.90Ma, base in Bajocian stage). Data source: Total of ranges of species in this database

Plot of range and occurrence data:


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


Globuligerina compiled by the pforams@mikrotax project team viewed: 13-7-2024

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