CATALOG OF ORIGINAL DESCRIPTIONS: Neogloboquadrina Bandy, Frerichs & Vincent 1967

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 -> N -> Neogloboquadrina
Other pages this level: Neoacarinina, Neogallitellia, Neogloboquadrina, Neoschackoina, Nonion, Nonionina,

Daughter taxa: (blue => in age window 0-800Ma)


= Neogloboquadrina dutertrei
= Neogloboquadrina inglei
not figured = Neogloboquadrina incompta

Neogloboquadrina

Citation: Neogloboquadrina Bandy, Frerichs & Vincent 1967
Rank: Genus
Type species: Globigerina dutertrei d'Orbigny, 1839

Current identification/main database link: Neogloboquadrina Bandy, Frerichs & Vincent 1967

See also: Globigerina dutertrei - type species;


Original Description
Test globose, trochospiral, multilocular, spire flat to rather high, chambers inflated. The umbilicus is deep and moderately broad. The aperture is interiomarginal, varying from umbilical to umbilical-extraumbilical, with toothlike umbilical flaps in tropical specimens, weakly developed flaps or none at all in specimens from temperate areas. Wall moderately and uniformly perforate, giving a pitted appearance with no spines or only a slight development of spines near t he aperture. This genus is like Globoquadrina Finlay, but it developed from a different lineage in the later Miocene and is therefore genetically unrelated. It differs from Globigerina d'Orbigny (1826), in having a pitted mostly non-spinose wall structure. Upper Miocene to Recent

Extra details from original publication
Discussion. - Related or synonymous forms now assigned to Neogloboquadrina include 'Globigerina' eggeri Rhumbler (1901) and 'Globigerina' subcretacea Lomnicki (1901). Parker (1962) has shown convincing evidence of gradations between these species and she has placed them together in synonymy with 'Globoquadrina' dutertrei (d'Orbigny, 1839). Other authors (Bandy, 1967; Ingle, 1966) have preferred to refer to these forms as separate species because most of the members of any given population can often be assigned to one of these variants.

The original specimens of 'Globigerina' dutertrei were from Cuba, Martinique, and Guadalupe; the lectotype of Banner and Blow (1960) compares favorably with specimens in sand samples from the Gulf of Batabano (Bandy, 1964), Cuba. Young or small Cuban specimens of 'G'. dutertrei compare rather well with the original illustration of d'Orbigny; larger forms of the species assume more chambers per whorl and have a larger and deeper umbilicus. About 99% of these specimens have toothlike umbilical flaps, or an indication of them on one or more chambers· this is essentially true of most other tropical populations. It is the opinion of the authors that Parker's conclusions are fully justified and that the various forms are no more than subspecies, if that, based upon the usual taxonomic principles.

References:

Bandy, O. L. (1964). Cenozoic planktonic foraminiferal zonation. Micropaleontology. 10: 1-17. gs

Bandy, O. L., Frerichs, W. E. & Vincent, E. (1967a). Origin, development, and geologic significance of Neogloboquadrina Bandy, Frerichs, and Vincent, gen. nov. Contributions from the Cushman Foundation for Foraminiferal Research. 8(4): 152-157. gs

Banner, F. T. & Blow, W. H. (1960a). Some primary types of species belonging to the superfamily Globigerinaceae. Contributions from the Cushman Foundation for Foraminiferal Research. 11: 1-41. gs

Parker, F. L. (1962). Planktonic foraminiferal species in Pacific sediments. Micropaleontology. 8(2): 219-254. gs


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Neogloboquadrina compiled by the pforams@mikrotax project team viewed: 27-1-2020

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