Globigerinita minuta


Classification: pf_cenozoic -> Globigerinitidae -> Globigerinita -> Globigerinita minuta
Sister taxa: G. glutinata, G. parkerae, G. minuta, G. uvula, G. sp.

Taxonomy

Citation: Globigerinita minuta (Natland, 1938)
Rank: species
Basionym: Globigerinoides minuta

Catalog entries: Globigerinoides minuta

Type images:

Distinguishing features: High trochospire, compact shell outline

NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.
They are being edited as the site is developed and comments on them are especially welcome.

Description


Morphology:

Coiling direction (in extant population): mixed


Size: <150µm

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical
sp chamber shape:Globularcoiling axis:Highperiphery:N/Aaperture border:Thin lip
umb chbr shape:Globularumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:Sutural
spiral sutures:Weakly depressedumb depth:Deepwall texture:Finely pustuloseshell porosity:Microperforate: <1µm
umbilical or test sutures:Moderately depressedfinal-whorl chambers:3.0-4.0 N.B. These characters are used for advanced search. N/A - not applicable

Biogeography and Palaeobiology


Geographic distribution:

In modern oceans a common, cold water, species [SCOR WG138]

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (SCOR WG138)
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

References:

Natland, M. L. (1938). New Species of Foraminifera from off the West Coast of North America and from the Later Tertiary of the Los Angeles Basin. Bulletin of the Scripps Institute of Oceanography, Tech. Ser. 4(5): 137-164. gs


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Globigerinita minuta compiled by the pforams@mikrotax project team viewed: 15-4-2021

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Short stable page link: https://mikrotax.org/pforams/index.php?id=104053 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (1)

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Süheyla

Globigerinita minuta and some other species as Tenuitella iota, Berggrenia pumilio, Dentigloborotalia anfracta, Globorotalia cavernula, Globigerinita minuta, and Globorotalia ungulata are expressed as taxonomically obscure species in Yasuhara et al. 2020. Do you have any objections about it?

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Jeremy Young (London, UK)

Hi - Yasuhara et al (2020) say these are "small, rare, and/or taxonomically obscure species", so they remove them from their analysis. It is often sensible to do this for some types of work however that does not mean that the species are not real, just that we know so little about them it is not useful to include them in some kinds of work. On the other hand I am assured that the SCOR working gorp on planktonic foraminifera will publish there synthesis of extant planktic foram taxonomy shortly. They will discuss all these species and I guess may eliminate some. That work is lead by Michal kucera and Geert-Jan Brummer, MK is one of the authors on Yasuhara et al. (2020) so the taxonomy is quite well co-ordinated.

cheers Jeremy Young

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