Catalog - Neogloboquadrina

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.

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

Neogloboquadrina

Citation: Neogloboquadrina Bandy, Frerichs & Vincent 1967

Type species: Globigerina dutertrei d'Orbigny, 1839

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

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. 18(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 O

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

Missing or ambiguous references: Ingle 1966;

			Neogloboquadrina subsp. atlantica praeatlantica Foresi, Iaccarino, & Salvatorini 2002
			Neogloboquadrina dutertrei andamanica Srinivasan & Azmi 1976
			Neogloboquadrina dutertrei blowi Rögl & Bolli 1973 = Neogloboquadrina dutertrei
			Neogloboquadrina inglei Kucera&Kennett 2000 = Neogloboquadrina inglei
not figured			Neogloboquadrina pachyderma dextralis Setty 1977 = Neogloboquadrina incompta

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

Neogloboquadrina

References:

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