pforams@mikrotax - Rugotruncana sp. pforams@mikrotax - Rugotruncana sp.

Rugotruncana sp.


Classification: pf_mesozoic -> Rugoglobigerinidae -> Rugotruncana -> Rugotruncana sp.
Sister taxa: R. circumnodifer, R. nothi, R. subcircumnodifer, R. sp.

Taxonomy

taxonomic rank: generic level id

Entries in the Catalog of original descriptions:

Distinguishing features:
Parent taxon (Rugotruncana): Test with a low trochospiral coil, early chambers subglobular and inflated, later chambers slightly compressed, sutures curved on the spiral side and continuous with the peripheral carina, straight, radial, and depressed on the umbilical side, umbilicus wide, periphery with double-keeled imperforate carinal band; wall calcareous, finely perforate, surface strongly pustulose, adjacent pustules may coalesce into short costellae without distinct alignment, although resulting in a rugose surface; primary aperture interiomarginal, umbilical, elongate portici in the early chambers, later with distinctly protruding tegilla provided with accessory apertures.
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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Rugotruncana sp. compiled by the pforams@mikrotax project team viewed: 26-2-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110513 Go to Archive.is to create a permanent copy of this page - citation notes



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