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Clavihedbergella subdigitata


Classification: pf_mesozoic -> Hedbergellidae -> Clavihedbergella -> Clavihedbergella subdigitata
Sister taxa: C. amabilis, C. eocretacea, C. leckiei, C. moremani, C. moulladei, C. pauliani, C. simplex, C. simplicissima, C. subcretacea, C. subdigitata, C. sp.,

Taxonomy

Citation: Clavihedbergella subdigitata (Carman, 1929)
Rank: Species
Basionym: Globigerina subdigitata

Type images:

Original description: "Test trochoid, in early stages with very low spire, becoming nearly planispiral in the adult, perforate. Last few chambers greatly elongated, with blunt ends, with chamber walls parallel not tapering. Axis of these chambers joins test at tangential angle."

Entries in the Catalog of original descriptions: Globigerina subdigitata

Geological Range:
Last occurrence (top): within D. asymetrica zone (84.19-86.71Ma, top in Santonian stage). Data source: [copied from Chronos database]
First occurrence (base): within D. concavata zone (86.71-89.91Ma, base in Turonian stage). Data source: [copied from Chronos 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

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Clavihedbergella subdigitata, synonyms included - Hastigerinoides subdigitata;
  • space-time plot :: Samples map :: Parent: Clavihedbergella

    Character matrix

    test outline:Stellatechamber arrangement:Planispiraledge view:Hourglassaperture:Equatorial
    sp chamber shape:Elongatecoiling axis:Very lowperiphery:N/Aaperture border:Thin lip
    umb chbr shape:Elongateumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:Relict
    spiral sutures:Moderately depressedumb depth:Shallowwall texture:Smoothshell porosity:
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:4.5-5.5 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Carman, K. (1929). Some foraminifera from the Niobara and Benton formations of Wyoming. Journal of Paleontology. 3(3): 309-315. gs

    Eicher, D. L. & Worstell, P. (1970). Lunatriella, a Cretaceous heterohelicid foraminifer from the western interior of the United States. Micropaleontology. 16(1): 117-121. gs


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    Clavihedbergella subdigitata compiled by the pforams@mikrotax project team viewed: 18-10-2019

    Taxon Search:
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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110051 Go to Archive.is to create a permanent copy of this page - citation notes



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