pforams@mikrotax - Globotruncanella sp. pforams@mikrotax - Globotruncanella sp.

Globotruncanella sp.


Classification: pf_mesozoic -> Globotruncanidae -> Globotruncanella -> Globotruncanella sp.
Sister taxa: G. compressiformis, G. havanensis, G. minuta, G. petaloidea, G. pschadae, G. semsalensis, G. sp.

Taxonomy

taxonomic rank: generic level id

Entries in the Catalog of original descriptions:

Distinguishing features:
Parent taxon (Globotruncanella): Test a low trochospiral, planoconvex to concavoconvex, compressed, chambers petaloid, about five in the final whorl, sutures radial, depressed, umbilicus of narrow to medium size, periphery acutely angled, with nonperforate carinal band or true keel, peripheral outline lobulate; wall calcareous, perforate, with pustulose suface and peripheral keel; primary aperture interiomarginal, extraumbilical-umbilical, in early chambers provided with a small triangular porticus, later with a distinct tegillum crossing the umbilicus, and with accessory apertures around the margins.
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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Globotruncanella sp. compiled by the pforams@mikrotax project team viewed: 14-6-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110187 Go to Archive.is to create a permanent copy of this page - citation notes



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