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Rugoglobigerina rugosa


Classification: pf_mesozoic -> Rugoglobigerinidae -> Rugoglobigerina -> Rugoglobigerina rugosa
Sister taxa: R. hexacamerata, R. macrocephala, R. milamensis, R. pennyi, R. rugosa, R. spinosa, R. sp.

Taxonomy

Citation: Rugoglobigerina rugosa (Plummer, 1927)
Rank: Species
Basionym: Globigerina rugosa
Synonyms: Rugoglobigerina (Rugoglobigerina) arwae; Rugoglobigerina (Rugoglobigerina) badryi; Rugoglobigerina (Rugoglobigerina) browni; Globotruncana (Rugoglobigerina) glaessneri glaessneri; Rugoglobigerina (Rugoglobigerina) reicheli pustulata; Globotruncana (Rugoglobigerina) glaessneri subglaessneri; Rugoglobigerina tradinghousensis
Taxonomic discussion: Bronnimann (1952) selected a lectotype from Plummers (1926) cotypes. Because none of the primary type specimens reveals presence of an imperforate peripheral band on the equatorial periphery, specimens with meridionally costellate specimens that show this feature are allocated to the genus Rugotruncana. [copied from Chronos database]

Type images:

Original description: "This form develops a closely coiled test with 5 rapidly enlarging, globular chambers that are ornamented by irregularly developed rugosities or even indistinct, discontinuous, and rugulose ridges that radiate backward over each chamber from a central point on its periphery. The umbilical features of G. rugosa are precisely those that mark G. rosetta Carsey when observed in perfect and unmineralized condition."

Entries in the Catalog of original descriptions: Globigerina rugosa, Rugoglobigerina (Rugoglobigerina) arwae, Rugoglobigerina (Rugoglobigerina) badryi, Rugoglobigerina (Rugoglobigerina) browni, Globotruncana (Rugoglobigerina) glaessneri glaessneri, Rugoglobigerina reicheli pustulata, Globotruncana (Rugoglobigerina) glaessneri subglaessneri, Rugoglobigerina tradinghousensis

Geological Range:
Last occurrence (top): within P. hariaensis zone (66.39-67.30Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within G. ventricosa zone (76.18-79.20Ma, base in Campanian stage). Data source: [copied from Chronos database]

Plot of range and occurrence data:

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Spiroconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Lowperiphery:N/Aaperture border:Tegilla
umb chbr shape:Globularumbilicus:Wideperiph margin shape:Broadly roundedaccessory apertures:Infralaminal
spiral sutures:Moderately depressedumb depth:Deepwall texture:Meridional costellaeshell porosity:Finely Perforate: 1-2.5µm
umbilical or test sutures:Strongly depressedfinal-whorl chambers:4.0-5.0 N.B. These characters are used for advanced search. N/A - not applicable

References:

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

Plummer, H. J. (1927). Foraminifera of the Midway Formation in Texas. University of Texas Bulletin. 2644: 1-206. gs

Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. 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


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Rugoglobigerina rugosa compiled by the pforams@mikrotax project team viewed: 21-10-2020

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