CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina mexicana Cushman 1925
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.
Citation: Globigerina mexicana Cushman 1925Rank: SpeciesType specimens: Holotype: (Plate 1, figs. 8 a, b) 4334Type sample (& lithostrat): Tantoyuca formation, yellow clayType age (chronostrat): Upper EoceneType locality: Palacho Hacienda, S. of Panuco-Tampico R. R., State of Vera Cruz, Mexico.Type repository: Washington; USNM
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. Etymology: 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." Editors' Notes
References:
Cushman, J. A. (1925d). New foraminifera from the Upper Eocene of Mexico. Contributions from the Cushman Laboratory for Foraminiferal Research. 1(1): 4-9. gsVO
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. gsVO
Globigerina mexicana compiled by the pforams@mikrotax project teamviewed: 31-1-2023
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