CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia aragonensis Nuttall 1930

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 -> Globorotalia -> Globorotalia aragonensis
Other pages this level: << < G. adamantea, G. aequa bullata, G. africana, G. akersi, G. alamedillensis, G. albeari, G. almadenensis, G. amuria, G. andalusiana, G. anfracta, G. angulata abundocamerata, G. angulata kubanensis, G. angulata praepentacamerata, G. apanthesma, G. apertura, G. aragonensis, G. aragonensis araratica, G. aragonensis caucasica, G. aragonensis incisimarginata, G. aragonensis twisselmanni, G. archeomenardii, G. armenica, G. australiformis, G. avanensis, G. barisanensis, G. bella, G. berggreni, G. bermudezi, G. berwaliana, G. birnageae, G. bollii, > >>

Globorotalia aragonensis

Citation: Globorotalia aragonensis Nuttall 1930
Rank: Species
Type locality: La Antigua Rio La Puerta, Mexico
Holotype Repository: Washington; USNM

Linked specimens: USNM-59499 USNM-64893 USNM-59500

Current identification/main database link: Morozovella aragonensis (Nuttall 1930)


Original Description
Test plano-convex, dorsally slightly elevated, rotaliform. Dorsally with 2 visible whorls, the first being small and much obscured by supplementary shell growth. The last whorl has about 7 chambers, separated by limbated sutures, which have a roughened surface and are for most part raised, but not always clearly demarcated from the finely perforate chamber surface. Border subacute, sometimes slightly lobulate, with a narrow, deeply depressed sutures. At the center is a narrow deep umbilicus, sometimes partly filled with secondary growth, which may hide part of the aperture, which is an elongate slit extending from the umbilicus to near the periphery and situated at the base of the last chamber.

Size: Average diameter 0.6 mm.

References:

Berggren, W. A. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of Eocene Morozovella. 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 11): 343-376. gs :: ::

Nuttall, W. L. F. (1930). Eocene Foraminifera from Mexico. Journal of Paleontology. 4: 271-293. gs :: ::


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Globorotalia aragonensis compiled by the pforams@mikrotax project team viewed: 2-7-2020

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