Pseudoguembelitria

Daughter taxa (time control age-window is: 0-800Ma)
			Pseudoguembelitria blakenosensis
			Pseudoguembelitria sp. Specimens which cannot be assigned to established species

Taxonomy

Original description: Test wall microperforate with pores surrounded by small-sized perforation cones; pustules may be present in the umbilical region. Test small, with early hedbergellid stage and higher trochospire in the adult. Chambers coiled in a variable trochospire with 4.5–5.0 chambers in the initial whorl and 3–4 chambers in the final whorl. Aperture a low interiomarginal, umbilical-extraumbilical arch without periapertural structures

Entries in the Catalog of original descriptions: Pseudoguembelitria

Distinguishing features:
Parent taxon (Hedbergellidae): Test trochospirally coiled, primary aperture interiomarginal, extraumbilical-umbilical, with prominent apertural lip, apertures of earlier chambers remain visible around the umbilical region; no sutural secondary apertures.
This taxon: Test wall microperforate with pores surrounded by small-sized perforation cones; pustules may be present in the umbilical region. Test small, with early hedbergellid stage and higher trochospire in the adult. Chambers coiled in a variable trochospire with 4.5–5.0 chambers in the initial whorl and 3–4 chambers in the final whorl. Aperture a low interiomarginal, umbilical-extraumbilical arch without periapertural structures.

Geological Range:
Last occurrence (top): at top of Aptian Stage (98% up, 113.2Ma, in Aptian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Aptian Stage (55% up, 119Ma, in Aptian stage). Data source: Total of range of species in this database

Plot of range and occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Hedbergellidae

Pseudoguembelitria compiled by the pforams@mikrotax project team viewed: 3-10-2023 Taxon Search: Advanced Search Short stables page link: https://mikrotax.org/pforams/index.php?id=110459 Go to Archive.is to create a permanent copy of this page - citation notes

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