pforams@mikrotax - Globotruncanita elevata

Globotruncanita elevata


Classification: pf_mesozoic -> Globotruncanidae -> Globotruncanita -> Globotruncanita elevata
Sister taxa: G. angulata, G. atlantica, G. conica, G. elevata, G. insignis, G. pettersi, G. stuarti, G. stuartiformis, G. sp.

Taxonomy

Citation: Globotruncanita elevata (Brotzen, 1934)
Rank: Species
Basionym: Rotalia elevata
Synonyms: Globotruncana andori; Globotruncana dentata;

Taxonomic discussion:
-lectyotype erected by Kurhy in Stockholm (see Atlas) [copied from Chronos database]

Type images:

Original description: Test nearly circular with spiral side slightly elevated towards the central part; border sharp, umbilicus deep and wide. Last chambers are indistinct on spiral side, but a small disk in the middle. Last whorl presents six to nine chambers, which are bordered on the spiral side by small, curved ledges. The chambers are strongly inflated sidewise on the umbilical side and slope towards on the umbilical side. Border formed by a sharp ledge. Surface is rough. The species is related to Rotalina ralemburgensis d'Orbigny, 1846.

Entries in the Catalog of original descriptions: Rotalia elevata, Globotruncana andori, Globotruncana dentata

Geological Range:
Last occurrence (top): within G. elevata zone (79.20-84.19Ma, top in Campanian stage). Data source: [copied from Chronos database]
First occurrence (base): at base of G. elevata zone (0% up, 84.2Ma, in Santonian stage). Data source: zonal marker (from Timescale Creator)

Plot of range and occurrence data:

Character matrix
test outline:Lobatechamber arrangement:Trochospiraledge view:Planoconvexaperture:Umbilical
sp chamber shape:Crescenticcoiling axis:Lowperiphery:Single keelaperture border:Thin porticus
umb chbr shape:Trapezoidalumbilicus:Wideperiph margin shape:Subangularaccessory apertures:Intralaminal
spiral sutures:Raised beadedumb depth:Deepwall texture:Finely pustuloseshell porosity:Finely Perforate: 1-2.5µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:5.0-9.0 N.B. These characters are used for advanced search. N/A - not applicable

References:

Almogi-Labin, A., Reiss, Z & Caron, M. (1986). Senonian globotruncanidae from Israel. Eclogae Geologicae Helvetiae. 79(3): 849-895. gs V O

Brotzen, F. (1934). Foraminiferen aus dem Senon Palastinas. Zeitschrift des Deutschen Palastina-Vereins. 28-72. gs

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

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 V O


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Globotruncanita elevata compiled by the pforams@mikrotax project team viewed: 24-9-2021

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