pforams@mikrotax - Gublerina pforams@mikrotax - Gublerina

Gublerina


Classification: pf_mesozoic -> Heterohelicidae -> Gublerina
Sister taxa: Heterohelix, Spiroplecta ⟩⟨ Braunella, Hendersonites, Huberella, Laeviheterohelix, Planoheterohelix, Protoheterohelix, Pseudoguembelina, Pseudotextularia ⟩⟨ Planoglobulina, Ventilabrella, Gublerina, Praegublerina, Sigalia, Racemiguembelina ⟩⟨ Lunatriella, Rectoguembelina, Zeauvigerina
Daughter taxa (time control age-window is: 0-800Ma)
Gublerina cuvillieri

Gublerina rajagopalani

Gublerina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Gublerina Kikoine 1948
taxonomic rank: Genus
Type species: Gublerina cuvillieri Kikoine, 1948

Original description: Se différencie totalement de tous les autres genres d'Heterohelicidae par son espace intercalaire déprimé et non pourvu de loges.

Entries in the Catalog of original descriptions: Gublerina

Distinguishing features:
Parent taxon (Heterohelicidae): Aperture symmetrical, ranging from a low slit to a high arch at the base of the final chamber, becoming terminal in uniserial taxa.
This taxon: Test flabelliform, the 2 rows of chambers diverge leaving nonseptate central space that later is partially occupied by chamber proliferation.


Morphology:
Test compressed, flabelliform, early stage planispiral, later biserial and increasing rapidly in breadth, the two series of chambers diverging to leave a broad nonseptate central area that later is partially occupied by chamber proliferation, sutures depressed; wall calcareous, finely perforate, ornamented with longitudinal costae and nodes, most prominently in the early stage; aperture an arch at the base of the final chamber.

Geological Range:
Last occurrence (top): at top of A. mayaroensis zone (100% up, 67.6Ma, in Maastrichtian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within G. ventricosa zone (76.18-79.20Ma, base in Campanian stage). Data source: Total of ranges of species in this database

Plot of range and occurrence data:

References:

Kikoine, J. (1948). Les Heterohelicidae du Crétacé supérieur pyrénéen. Bulletin de la Société Géologique de France. 18(1-3): 15-35. 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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Gublerina compiled by the pforams@mikrotax project team viewed: 20-4-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110214 Go to Archive.is to create a permanent copy of this page - citation notes



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Comments (2)

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Le Coze

Ref.: Kikoine, J. (1948). Les Heterohelicidae du Crétacé supérieur pyrénéen. Bulletin de la Société Géologique de France. ser. 5, 18(1-3): 15-35.

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Jeremy Young(UK)

Thanks, that is being done now