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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 S. W. Petters, El-Nakhal, and Cifelli 1983:

Entries in the Catalog of original descriptions: Costellagerina;

Distinguishing features: 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:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

References:

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

Petters, S.W.; El-Nakhal, H.A. & Cifelli, R., (1983). Costellagerina, a new late Cretaceous Globigerine foraminiferal genus. Journal of Foraminiferal Research, 13(4): 247-251.


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Costellagerina compiled by the pforams@mikrotax project team viewed: 16-12-2018

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110078Go to Archive.is to create a permanent copy of this page - citation notes



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