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Globotruncanita


Classification: pf_mesozoic -> Globotruncanidae -> Globotruncanita
Sister taxa: Abathomphalus, Contusotruncana, Dicarinella, Gansserina, Globotruncana, Globotruncanella, Globotruncanita, Loeblichella, Marginotruncana, Radotruncana,
Daughter taxa (blue => in age window 0-300Ma)








Specimens which cannot be assigned to established species

Taxonomy

Citation: Globotruncanita Reiss, 1957
Rank: Genus
Basionym: Rosalina stuarti
Type species: Rosalina stuarti de Lapparent, 1918

Type images:

Original description: Globotruncanita:

Entries in the Catalog of original descriptions: Globotruncanita;

Short diagnosis: Test trochospiral, biconvex, chambers rhomboidal in section, sutures elevated, oblique or radial, straight or curved on the spiral side, depressed or elevated on the umbilical side, periphery with a beaded single keel that is continuous with the sutures on the spiral side, peripheral outline subcircular, polygonal, or lobate; wall calcareous, finely perforate, smooth except for the beaded sutures and peripheral keel and a concentric row of pustules near the umbilicus on the umbilical side; primary aperture interiomarginal, umbilical to slightly extraumbilical, successive apertures covered by portici that may remain free or may coalesce in the umbilicus to leave proximal accessory apertures.

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Coniacian Stage (86.26-89.77Ma, base in Coniacian stage). Data source: Total of range of species in this 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:

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


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Globotruncanita compiled by the pforams@mikrotax project team viewed: 13-12-2017

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Go to Archive.is to create a permanent copy of this page - citation notes



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