Taxonomy
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Entries in the Catalog of original descriptions:
Distinguishing features:
Parent taxon (Planomalina): Test planispiral, partly evolute, biumbilicate, about eight to ten chambers in the final whorl, sutures broadly curved, thickened, elevated and nodose, peripheral outline lobulate, peripheral angle carinate; wall calcareous, finely perforate, radial in structure, ornamented by the thickened and nodose sutures and peripheral keel; aperture a basal equatorial arch with bordering lip, the opening extending to either side, where part of previous apertures and the bordering lip may remain exposed as relict apertures as the new chambers are added.
This taxon: Specimens which cannot be assigned to established species
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:
Plot of range and occurrence data:
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Planomalina sp. compiled by the pforams@mikrotax project team viewed: 18-6-2026
Short stable page link: https://mikrotax.org/pforams/index.php?id=110415 Go to Archive.is to create a permanent copy of this page - citation notes |
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