bforams@mikrotax - Triloculina bforams@mikrotax - Triloculina

Triloculina

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

Triloculina trigonula

Triloculina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Triloculina d'Orbigny, 1826
Taxonomic rank: genus
Type species: Miliolites trigonula Lamarck, 1804

Catalog entries: Triloculina

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: elongate-flattened, discoidal, millioline, SURFACE: keel, raised sutures, APERTURE: circular, terminal, dentate,
Final whorl chambers: 3->3
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 Early Eocene Sub-Epoch (47.84-55.96Ma, base in Ypresian 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:

d'Orbigny, A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles, Paris. 7: 245-314. gs

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

Taxon Search:
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Short stable page link: https://mikrotax.org/bforams/index.php?id=2000170 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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