Catalog - Guembelina excolata Catalog - Guembelina excolata

CATALOG OF ORIGINAL DESCRIPTIONS: Guembelina excolata Cushman 1926

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 excolata
Other pages this level: << < G. acervulinoides, G. barnardi, G. boliviniformis, G. carinata, 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> >>

Guembelina excolata

Citation: Guembelina excolata Cushman 1926
Taxonomic rank: species
Type specimens: Cushman Coll. No. 5071; Plate 2, fig. 9
Type age (chronostrat): Maastrichtian
Type locality: East bank of the Tamuin River, 5 km southest of Guerrero, San Luis Potosi, Mexico.
Type repository: Washington; USNM

Linked specimens: USNM-5071

Current identification/main database link: Pseudoguembelina excolata (Cushman, 1926)


Original Description

Test small, much compressed, broadest near the apertural end, initial end pointed, early portion with the chambers ar-ranged as in Virgulina, later chambers biserial; chambers fairly distinct, slightly inflated, increasing in height as added; suturesslightly depressed; wall ornamented with curved, slightlyoblique, longitudinal costac, those of separate chambers usually distinct from those of adjacent chambers except in the early portion where the costae may cover more than one chamber; aperture elongate oval.

Size:
Length 0.45 mm.; breadth 0.30 mm.; thickness 0.18 mm.

Extra details from original publication
This curiously ornamented species of very small size is never- theless distinct and ofter occurs in considerable numbers. It is allied with some of the species described from Europe from the Upper Cretaceous, but seems to be distinct from any of these.

References:

Cushman, J. A. (1926c). Some foraminifera from the Mendez shale of Eastern Mexico. Contributions from the Cushman Laboratory for Foraminiferal Research. 2(1): 16-24. gs


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

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