pforams@mikrotax - Paracostellagerina sp. pforams@mikrotax - Paracostellagerina sp.

Paracostellagerina sp.


Classification: pf_mesozoic -> Hedbergellidae -> Paracostellagerina -> Paracostellagerina sp.
Sister taxa: P. libyca, P. sp.

Taxonomy

taxonomic rank: generic level id

Entries in the Catalog of original descriptions:

Distinguishing features:
Parent taxon (Paracostellagerina): Test low to moderate trochospiral, globular chambers with a broadly rounded periphery, lacking peripheral structures; primary aperture extraumbilical-umbilical, bordered by a narrow, imperforate lip; test ornamentation asymmetrical with respect to the peripheral plane, rugosities and sharp costellae arranged following a meridional pattern on the umbilical side, and parallel to the periphery on the spiral side.
This taxon: Specimens which cannot be assigned to established species

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage).
First occurrence (base): within (-Ma, base in "Holocene" stage).

Plot of range and occurrence data:

References:


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Paracostellagerina sp. compiled by the pforams@mikrotax project team viewed: 16-6-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110381 Go to Archive.is to create a permanent copy of this page - citation notes



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