Catalog - Guembelina moremani Catalog - Guembelina moremani

CATALOG OF ORIGINAL DESCRIPTIONS: Guembelina moremani 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 moremani
Other pages this level: << < 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, G. papula, G. paucistriata, G. plana, G. planata, G. plummerae, G. pseudostriata, G. pseudotessera, G. pulchra, G. pumilia, G. punctulata> >>

Guembelina moremani

Citation: Guembelina moremani Cushman 1938
Taxonomic rank: species
Type specimens: Pl. 2. figs. 1-3; Holotype (Cushman CoIl. No. 24370)
Type sample (& lithostrat): lower part of Eagle Ford shale
Type age (chronostrat): Cenomanian
Type locality: South bank of small stream, 100 yards east of highway, 2.1 mi. north of Itasca, Hill County, Texas
Type repository: Washington; USNM

Linked specimens: USNM-31313 USNM-31316 USNM-24371 USNM-24370

Current identification/main database link: Planoheterohelix moremani (Cushman, 1938)


Original Description

Slender test with up to 18 chambers that subglobular to slightly reniform, or deeper than wide.--Huber "Test elongate, 2½-3 times as long as broad, gradually tapering throughout, only slightly enlarging in the later portion, periphery distinctly indented throughout; chambers globular, often slightly irregular and occasionally with one developed at the side in the adult; sutures distinct and depressed throughout; wall smooth, finely perforate; aperture, a high arched opening at the inner margin of the last-formed chamber, with a slight lip which may reach forward at the sides onto the previously formed chamber. 

Size:
Length 0.35 - 0.45 mm; breadth 0.15 - 0.18 mm; thickness 0.10 mm

Extra details from original publication
This species differs from G. globulosa (Ehrenberg) in the larger number of chambers and more slender and less tapering test. It occurs in the Eagle Ford and equivalent formations in considerable numbers, and occasionally shows a tendency toward Ventilabrella.

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 moremani compiled by the pforams@mikrotax project team viewed: 17-11-2025

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