pforams@mikrotax - Costellagerina sp. pforams@mikrotax - Costellagerina sp.

Costellagerina sp.


Classification: pf_mesozoic -> Hedbergellidae -> Costellagerina -> Costellagerina sp.
Sister taxa: C. bulbosa, C. pilula, C. sp.

Taxonomy

taxonomic rank: generic level id

Entries in the Catalog of original descriptions:

Distinguishing features:
Parent taxon (Costellagerina): Test with low to medium trochospiral coil of few, rapidly enlarging, spherical chambers per whorl, sutures radial, depressed, periphery rounded, peripheral margin lobulate; wall calcareous, hyaline, optically radial, finely perforate, surface with meridionally aligned pustules and costellae resulting from fusion of adjacent pustules; aperture a low interiomarginal, umbilical to slightly extraumbilical arch, with a narrow bordering lip.
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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Costellagerina sp. compiled by the pforams@mikrotax project team viewed: 25-6-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110081 Go to Archive.is to create a permanent copy of this page - citation notes



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