Cushman 1925-pl1f8a-b.jpg
Eocene_Atlas_pl07-8_fig1-2.jpg
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.
Cushman 1925-pl1f8a-b.jpg
Eocene_Atlas_pl07-8_fig1-2.jpgLinked specimens: USNM-4334
Current identification/main database link: Globigerinatheka mexicana (Cushman 1925)
Original Description
"Test subglobular, early chambers spirally arranged, in the later development the last-formed chamber making up nearly half the surface of the test; chambers distinct, inflated; sutures distinct, somewhat depressed; wall fairly thick, generally reticulate; surface dull; aperture at the inner margin of the chamber with additional small openings at its periphery.
Size: diameter 0.40-0.60 mm.
Extra details from original publication
This species is nearest related to Globigerina conglobata H.B. Brady, but is more spherical, the chambers being very different in their arrangement, and the surface much more smooth than in that species."
Cushman, J. A. (1925d). New foraminifera from the Upper Eocene of Mexico. Contributions from the Cushman Laboratory for Foraminiferal Research. 1(1): 4-9. gs V O Premoli Silva, I., Wade, B. S. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of Globigerinatheka and Orbulinoides. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 7): 169-212. gs V OReferences:
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Globigerina mexicana compiled by the pforams@mikrotax project team viewed: 27-1-2021
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