pforams@mikrotax - Igorina sp. pforams@mikrotax - Igorina sp.

Igorina sp.


Classification: pf_cenozoic -> Truncorotaloididae -> Igorina -> Igorina sp.
Sister taxa: I. tadjikistanensis, I. albeari, I. pusilla, I. sp.

Taxonomy

Taxonomic rank: generic level id

Catalog entries:

Distinguishing features:
Parent taxon (Igorina): Test small, biconvex, evolute, margin narrowly rounded or angular, sometimes with a keel; 5-6 chambers in final whorl
Wall, coarsely cancellate, praemuricate, often pustulose.

This taxon: Specimens which cannot be assigned to established species

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

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of (100% up, 0Ma, in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

References:

Soldan, D. M., Petrizzo, M. R., Silva, I. P. & Cau, A. (2011). Phylogenetic relationships and evolutionary history of the Paleogene genus through parsimony analysis. Journal of Foraminiferal Research. 41: 260-284. gs


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Igorina sp. compiled by the pforams@mikrotax project team viewed: 30-4-2025

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Short stable page link: https://mikrotax.org/pforams/index.php?id=100176 Go to Archive.is to create a permanent copy of this page - citation notes



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