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.
Linked specimens: USNM-4816
Current identification:
Six syntype specimens were deposited in the Cushman Collection (USNM P4816), Washington, D.C. (not seen). Illustrated specimens figured in Ellis and Messina Catalogue resemble Subbotina utilisindex and, to a lesser extent, S. linaperta and/or S. angiporoides. These forms range into the lower Oligocene but all have a distinctly reticulate surface ornamentation. An examination of type material at the USNM and selection of a neotype is required before a decision on definitive taxonomic affinity/identity can be made.[Berggren & Wade 2018]
Original Description
For: Globigerina stainforthi Hofker, 1956, Jour. Paleontology , vol. 30, p. 955, text figs. 96 and 97, Upper Eocene, Ecuador
(non Globigerina stainforthi Bronnimann, 1952, Bull. Amer. Paleontology, vol. 34, No. 143, p. 23, pl. 3, figs. 10-12, Paleocene, Trinidad).
Editors' Notes
- see also Globigerina hofkeri Brönnimann, 1961 which was an alternative new name.
The species was discussed by Berggren & Wade 2018, under the name G. stainforthi:
Medium to large form (greater diameter 0.36-0.75 mm, lesser diameter 0.30-0.50 mm; thickness: 0.26-0.48 mm); 3 chambers visible on ventral side, strongly inflated on both sides; aperture a narrow slit, often nearly invisible; no umbilical cavity; surface nearly smooth with no reticular ornamentation. The tightly coiled (involute), trilobate chamber disposition and distinct, low/narrow apertural slit are characteristic features of this form.[Berggren & Wade 2018]
Berggren, W. A. & Wade, B. S. (2018). Problematica. In, Wade, B. S., Olsson, R. K., Pearson, P. N., Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 46(Chap 20): 511-524. gs Thalmann, H. E. (1959). New names for foraminiferal homonyms. Contributions from the Cushman Foundation for Foraminiferal Research. 10(4): 130-. gs References:

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Globigerina aequatorialis compiled by the pforams@mikrotax project team viewed: 7-11-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=130327 Go to Archive.is to create a permanent copy of this page - citation notes |
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