Catalog - Guembelina globocarinata Catalog - Guembelina globocarinata

CATALOG OF ORIGINAL DESCRIPTIONS: Guembelina globocarinata Cushman 1938

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> G -> Guembelina -> Guembelina globocarinata
Other pages this level: << < G. cenomana, G. cenomanica, G. complanata, G. conjakica, G. costulata, G. crinita, G. cubensis, G. cubensis heterostoma, G. dagmarae, G. deflaensis, G. distorta, G. excolata, G. fructicosa, G. garretti, G. glabrans, G. globocarinata, G. globulosa dibrarica, G. globulosa striatula, G. goodwini, G. malocaucasica, G. marshallana, G. mauriciana, G. mica, G. midwayensis, G. midwayensis nammalensis, G. moremani, G. morsei, G. multicellaris, G. nuttalli, G. obtusa, G. ototara> >>

Guembelina globocarinata

Citation: Guembelina globocarinata Cushman 1938
Taxonomic rank: species
Type specimens: Pl. 2, figs. 4-5; 24372
Type sample (& lithostrat): Taylor marl, upper part
Type age (chronostrat): Upper Santonian
Type locality: Milton road, west-facing slope of a branch valley, I mile west of Deport, Lamar County, Texas
Type repository: Washington; USNM

Linked specimens: USNM-24372 USNM-24373 USNM-31642

Current identification/main database link: Planoheterohelix globulosa (Ehrenberg, 1840)


Original Description

Test rapidly tapering from the subacute initial end to the greatest breadth formed by the last two chambers, early portion compressed and slightly carinate, periphery in the early portion entire, later distinctly indented; chambers of the early portion compressed, much broader than high, thence increasing gradually in relative height, last-formed pair much enlarged and inflated; sutures distinct, early ones slightly limbate, depressed strongly in the later portion; wall of the early portion finely costate longitudinally, later with longitudinal row of fine pits; aperture, a large, arched opening at the inner margin of the chamber.

Size:
Length 0.40-0.50 mm.; breadth 0.28-0.30 mm.; thickness 0.20 mm.

Extra details from original publication
This species differs from G. striata (Ehrenberg) in the car­inate and compressed early portion, and the very rapidly expanding last chambers.
The range of the species seems to be throughout the Taylor marl upward and into the Neylandville marl, but not above.

References:

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

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


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Guembelina globocarinata compiled by the pforams@mikrotax project team viewed: 18-11-2025

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