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Costellagerina


Classification: pf_mesozoic -> Hedbergellidae -> Costellagerina
Sister taxa: Asterohedbergella, Clavihedbergella, Costellagerina, Falsotruncana, Hedbergella, Helvetoglobotruncana, Liuenella, Microhedbergella, Muricohedbergella, Paracostellagerina, Paraticinella, Praeglobotruncana, Pseudoguembelitria, Whiteinella,
Daughter taxa (blue => in age window 0-300Ma)


Specimens which cannot be assigned to established species

Taxonomy

Citation: Costellagerina S. W. Petters, El-Nakhal, and Cifelli 1983
Rank: Genus
Basionym: Rugoglobigerina bulbosa
Type species: Rugoglobigerina bulbosa Belford, 1960

Type images:

Original description: Costellagerina :

Entries in the Catalog of original descriptions: Costellagerina;

Short diagnosis: Test with low to medium trochospiral coil of few, rapidly enlarging, spherical chambers per whorl, sutures radial, depressed, periphery rounded, peripheral margin lobulate; wall calcareous, hyaline, optically radial, finely perforate, surface with meridionally aligned pustules and costellae resulting from fusion of adjacent pustules; aperture a low interiomarginal, umbilical to slightly extraumbilical arch, with a narrow bordering lip.

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian 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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Costellagerina compiled by the pforams@mikrotax project team viewed: 17-10-2017

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AphiaID: 721558 Nomenclatural data on WoRMS
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