bforams@mikrotax - Nummoloculina bforams@mikrotax - Nummoloculina

Nummoloculina

NB This site is under active development, current content in the main database is primarily from Bolli et al 1994, Hayward et al. 2012, Holbourn et al. 2013, Holbourn and Kaminski 1997, Alegret & Thomas 2001, and Katz et al. 2003. It is intended to expand and develop this to provide rather comprehensive coverage of Mesozoic and Cenozoic deep-sea benthic foraminifera.


Classification: bf_main -> Miliolida -> Nummoloculina
Sister taxa: Nummoloculina, Pyrgo, Quinqueloculina, Sigmoilopsis, Silicosigmoilina, Spirosigmoilina, Triloculina
Daughter taxa (time control age-window is: 0-800Ma)
Nummoloculina contraria

Nummoloculina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Nummoloculina Steinmann, 1881
Taxonomic rank: genus
Type species: Biloculina contraria d'Orbigny, 1846

Catalog entries: Nummoloculina

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


Wall composition:
calcareous-porcellaneous

Search data:
TEST: biconvex, trochospiral, APERTURE: circular, areal, dentate,
Final whorl chambers: 2->5
The morphological data given here can be used on the advanced search page. See also these notes

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 Miocene Epoch (5.33-23.03Ma, base in Aquitanian stage). Data source: Total of range of species in this database

Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer

References:

Steinmann, G. (1881). Die Foraminiferengattung Nummoloculina n. g. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie. 1: 31-43. gs

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Nummoloculina compiled by the bforams@mikrotax project team viewed: 13-7-2025

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Short stable page link: https://mikrotax.org/bforams/index.php?id=2000122 Go to Archive.is to create a permanent copy of this page - citation notes
bforams@mikrotax has been supported by US IODP Science Support Program and by the Geologic TimeScale Foundation
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