nmn

Plummerita reicheli


Classification: pf_mesozoic -> Rugoglobigerinidae -> Plummerita -> Plummerita reicheli
Sister taxa: P. hantkeninoides, P. kennerleyi, P. reicheli, P. sp.,

Taxonomy

Citation: Plummerita reicheli (Bronnimann, 1952)
Rank: Species
Basionym: Rugoglobigerina reicheli reicheli

Type images:

Original description: The last volution of the small to medium-sized low trochoidal test comprises 5-6 chambers. Umbilical and spiral sides are well-defined. About 2 whorls can be counted on the centrally slightly depressed spiral side. No details of the initial portion are discernible dur to the coarsely rugose surface. The ultimate chamber can be larger or of the same size or even smaller than the penultimate chambers of the last whorl are of conic shape. The adjoining chambers are peripherally rounded and truncate at the apertural side. The umbilicus is deep, usually filled with matrix. Remains of the delicate covering plate were noted. The straight sutures are depressed, thus producing a lobulate outline. The large arcuate aperture of the end chamber, with a small lip-like projection, opens into the umbilicus. The apertures of the preceding chambers are not known. The walls appear to be thick, and the surface is coarsely rugose. The rugosities of the inflated last chambers are arranged in meridional rows radiating from a center on the surface toward the edges fo the aperture. The investigated specimens are invariably dextrally coiling.

Entries in the Catalog of original descriptions: Rugoglobigerina reicheli reicheli

Geological Range:
Last occurrence (top): within A. mayaroensis zone (67.30-69.18Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within A. mayaroensis zone (67.30-69.18Ma, base in Maastrichtian 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: Plummerita reicheli, synonyms included - Plummerita reicheli; Rugoglobigerina reicheli;
  • space-time plot :: Samples map :: Parent: Plummerita

    Character matrix

    test outline:Stellatechamber arrangement:Trochospiraledge view:aperture:Umbilical
    sp chamber shape:Subtriangularcoiling axis:Very lowperiphery:N/Aaperture border:Tegilla
    umb chbr shape:Subtriangularumbilicus:Wideperiph margin shape:Subangularaccessory apertures:Infralaminal
    spiral sutures:Moderately depressedumb depth:Shallowwall texture:Meridional costellaeshell porosity:
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:5.0-6.0 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Brönnimann, P. (1952c). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletin of American Paleontology. 34(140): 1-70. gs

    Smith, C. C. & Pessagno, E. A. (1973). Planktonic foraminifera and stratigraphy of the Corsicana formation (Maestrichtian) North-central Texas. Cushman Foundation for Foraminiferal Research, Special Publication. 12: 1-67. gs


    logo

    Plummerita reicheli compiled by the pforams@mikrotax project team viewed: 17-11-2019

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/pforams/index.php?id=110423 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet. Be the first!

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics