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Hendersonites carinatus


Classification: pf_mesozoic -> Heterohelicidae -> Hendersonites -> Hendersonites carinatus
Sister taxa: H. carinatus, H. sp.,

Taxonomy

Citation: Hendersonites carinatus (Cushman, 1938)
Rank: Species
Basionym: Guembelina carinata Cushman, 1938
Taxonomic discussion: Placed in Hendersonia by Georgescu & Abramovich, 2008,  [copied from Chronos database]. Renamed Hendersonites carinatus by Georgescu & Abramovich, 2009

Type images:

Original description: Test only slightly longer than broad, much compressed, early portion rapidly tapering, later with the sides nearly parallel, all but the latest chambers keeled; chambers broader than high, increasing somewhat in relative height in the last chambers, only slightly inflated; sutures of the early portion slightly limbate, later ones slightly depressed; wall in the early portion slightly costate, later smooth, finely perforate; aperture low, arched.

Entries in the Catalog of original descriptions: Guembelina carinata

Geological Range:
Last occurrence (top): within R. calcarata zone (75.71-76.18Ma, top in Campanian stage). Data source: [copied from Chronos database]
First occurrence (base): within D. asymetrica zone (84.19-86.71Ma, base in Coniacian 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: Hendersonites carinatus, synonyms included - Heterohelix carinata;
  • space-time plot :: Samples map :: Parent: Hendersonites

    Character matrix

    test outline:Subtriangularchamber arrangement:Biserialedge view:Compressedaperture:Interiomarginal
    sp chamber shape:Subrectangularcoiling axis:N/Aperiphery:Single keelaperture border:Thin flange
    umb chbr shape:Subrectangularumbilicus:N/Aperiph margin shape:Subangularaccessory apertures:N/A
    spiral sutures:Moderately depressedumb depth:N/Awall texture:Finely costateshell porosity:
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:2.0-2.0 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Cushman, J. A. (1938). Cretaceous species of Guembelina and related genera. Contributions from the Cushman Laboratory for Foraminiferal Research. 14: 2-28. gs

    Georgescu, M. D. & Abramovich, S. (2008b). Taxonomic revision and phylogenetic classification of the Late Cretaceous (upper Santonian-Maastrichtian) serial planktonic foraminifera (Familiy Heterohelicidae Cushman, 1927) with peripheral test wall flexure. Revista Española de Micropaleontología. 40: 97-114. gs

    Georgescu, M. D. & Abramovich, S. (2009b). Short nomenclature note: A new name for the Upper Cretaceous planktic foraminiferal genus Hendersonia Georgescu and Abramovich, 2008. Revista Española de Micropaleontología. 41: 215-. gs

    Nederbragt, A. J. (1991). Late Cretaceous biostratigraphy and development of Heterohelicidae (planktic foraminifera). Micropaleontology. 37: 329-372. gs


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    Hendersonites carinatus compiled by the pforams@mikrotax project team viewed: 22-10-2019

    Taxon Search:
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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110280 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (1)

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    Zahra Tarash (Isfahan, Iran)

    Hello

    What is abbreviation for N/A?

    Thank you.

    Gravatar
    Jeremy Young (Tonbridge, UK)

    Hi Zahra

    N/A means "Not Applicable" - I assumed everyone would know this, so thank you for pointing out that its not clear to all users. I will add an explanation.

    Jeremy

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