Globorotalia

NB TAXA WHICH ORIGINATE IN THE OLIGOCENE ARE NOT INCLUDED YET
Classification: pf_neogene -> Globorotalidae -> Globorotalia
Sister taxa: Berggrenia, Dentigloborotalia, Dentoglobigerina, Globoconella, Globoquadrina, Globorotalia, Globorotaloides, Neogloboquadrina, Pulleniatina,
Daughter taxa (blue => in age window 0-300Ma) Granddaughter taxa










Specimens which cannot be assigned to established species

Taxonomy

Citation: Globorotalia
Rank: genus
Type species: Pulvinulina menardii var. tumida
Taxonomic discussion: Virtually every planktonic foraminiferal species with an extraumbilical to peripheral aperture has been assigned to the genus Globorotalia. However, although the use of the apertural characteristic as the sole criterion has the advantage of simplicity of application, it does not necessarily reflect true phylogenetic relationships between species or patterns of evolutionary radia- tion, which have marked the Neogene planktonic foraminiferal assemblages (Cifelli, 1969).
Blow (1969) divided the Neogene globorotaliids into two subgenera, Globorotalia (Globorotalia) and Globorotalia (Turborotalia), on the basis of the presence or absence of a peripheral keel. Such a procedure, however, ignores the phyletic relationships between species and often splits a continuous evolutionary bioseries into two subgenera, as for example the Gr. (Turborotalia) peripheroronda to Gr. (Globorotalia) fohsi robusta bioseries. Thus, Blow's (1969) grouping is artificial from a taxonomic point of view. [Kennett & Srinivasan 1983].

The distinct lineages of Globorotalia have been assigned to different genera or sub-genera by many workers - e.g. Bandy (1972, 1975), Fleisher (1974), Kennett & Srinivasan (1983), Aze et al. 2011. However, the nomenclatural validity of these taxa is in doubt, so here we simply identify them as lineages. Despite this the classification essentially follows that of Aze et al. 2011. [Wade, Young 2016]

Catalog entries: Globorotalia;

Type images:

Short diagnosis: Smooth wall; compressed chambers:

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within Chattian Stage (23.03-28.09Ma, base in Chattian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Aze, T.; Ezard, T.H.G.; Purvis, A.; Coxall, H.K.; Stewart, D.R.M.; Wade, B.S. & Pearson, P.N.P., (2011). A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data. Biological Reviews, 86: 900-927.

Bandy, O.L., (1972). Origin and development of Globorotalia (Turborotalia) pachyderma (Ehrenberg). Micropaleontology, 18(3): 294-318.

Bandy, O.L., (1975). Messinian evaporite deposition and the Miocene/Pliocene boundary, Pasquasia-Capodarso Sections, Sicily. In: Saito, T. and Burckle, L.H. (Editors), Late Neogene Epoch Boundaries. American Museum Natural History Micropaleontology Press, New York, pp. 49-63.

Fleisher, R.L., (1974). Cenozoic planktonic foraminifera and biostratigraphy, Arabian Sea, Deep Sea Drilling Project, Leg 23A. Initial Reports of the Deep Sea Drilling Project, 23: 1001-1072.

Kennett, J.P. & Srinivasan, M.S., (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania, 1-265 pp.


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Globorotalia compiled by the pforams@mikrotax project team viewed: 18-8-2017

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AphiaID: 112200 Nomenclatural data on WoRMS
Go to Archive.is to create a permanent copy of this page - citation notes



AphiaID: 112200 Nomenclatural data on WoRMS
Go to Archive.is to create a permanent copy of this page - citation notes

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