pforams@mikrotax - Plummerita reicheli

Plummerita reicheli

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


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

Emended description:


Wall type:


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

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 range and occurrence data:


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

Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs V O

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 V O


Plummerita reicheli compiled by the pforams@mikrotax project team viewed: 2-12-2022

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