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Gorbachikella


Classification: pf_mesozoic -> Praehedbergellidae -> Gorbachikella
Sister taxa: Blefuscuiana, Gorbachikella,
Daughter taxa (blue => in age window 0-300Ma)




Specimens which cannot be assigned to established species

Taxonomy

Citation: Gorbachikella
Rank: Genus

Type images:

Original description: Gorbachikella Banner & Desai 1988: Test trochospiral, consisting of two or more whorls, initially with four or more chambers per whorl, and final whorl of four chambers, which are typically subglobular or reniform; spiral side completely evolute, umbilical side almost completely involute but with a distinct, true umbilicus; aperture intraumbilical, a low or high symmetrical arch; wall calcareous, microperforate (external diameters < 1.5µm), smooth, not muricate, probably calcitic.

Entries in the Catalog of original descriptions: Gorbachikella;

Geological Range:
Last occurrence (top): within Aptian Stage (112.95-126.30Ma, top in Aptian stage). Data source: Total of range of species in this database
First occurrence (base): within Hauterivian Stage (130.77-133.88Ma, base in Hauterivian 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:


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Gorbachikella 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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