CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina eamesi Blow 1959

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 -> Globigerina -> Globigerina eamesi
Other pages this level: << < G. depressa, G. depressa d’Orbigny, G. detrita, G. difformis, G. digitata, G. dinodensis, G. diplostoma, G. dissimilis, G. druryi, G. druryi decoraperta, G. dubia, G. dubia lakiensis, G. dubiata, G. dudrouensis, G. dutertrei, G. eamesi, G. edita, G. edita polycamera, G. eggeri, G. eggeriformis, G. elburganica, G. elevata, G. elongata, G. elongata Shutskaya, G. eocaena, G. eocaenica, G. eocaenica irregularis, G. esnaensis, G. euapertura, G. eugubina, G. eximia, > >>

Globigerina eamesi

Citation: Globigerina eamesi Blow 1959
Rank: species
Type locality: Pozon, eastern Falcon, Venzeuela
Type age: Late Miocene
Type sample and level: From sample, No. RM 19778, auger line near Pozon; Plate 9, figures 39a-c
Holotype Repository: Washington; USNM
Type & figured specimens: 625695
Description on pages: 176

Linked specimens: USNM-625696 USNM-625695

Current identification/main database link: Not linked - add to pf_cenozoic :: pf_mesozoic :: ?


Original Description
Test strongly trochospiral with 11-12 chambers arranged in about three whorls and with four chambers in the last whorl; chambers subspherical, inflated but somewhat embracing, also increasing regularly and fairly slowly in size as added; equatorial periphery lobate; equatorial profile subcircular; axial periphery rounded. The sutures of the spiral side and umbilical side are depressed, radial to slightly curved. Umbilicus small, usually almost closed; aperture an elongate slit with a thin lip, interiomarginal, umbilical; wall calcareous, perforate, thin and fragile, rough to distinctly spinose, often with thick spines.

Size: Maximum diameter of holotype, 0.34 mm.

Etymology: This species is named after Dr. F. E. Fames (Chief Palaeontologist, The British Petroleum Co. Ltd., London) in recognition of his contributions to Miocene stratigraphy and also in appreciation of the encouragement he has given the author during the preparation of this work.

Extra details from original publication
Remarks: This species is characterized by the rough to spinose wall which is also thin and fragile. It differs from Globigerina foliata Bolli by being more trochospiral, in having a very small umbilicus, a slitlike aperture and in the chambers being less well separated.

Occurrence:—Ranges from the middle part of the Globorotalia menardii menardii/Globigerina nepenthes Zone to the Sphaeroidinella seminulina Zone, Pozon formation. [i.e. Late Miocene ca N15 to 17]

Editors' Notes
NB This is a problematic taxon, it will be investigated by the Neogene working group. [editor&apos;s comment - JRY 2019]

References:

Blow, W. H. (1959). Age, correlation, and biostratigraphy of the upper Tocuyo (San Lorenzo) and Pozon Formations, eastern Falcon, Venezuela. Bulletins of American Paleontology. 39(178): 67-251. gs


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Globigerina eamesi compiled by the pforams@mikrotax project team viewed: 30-3-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=130454 Go to Archive.is to create a permanent copy of this page - citation notes



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