Huberella

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

Taxonomy

Original description: Diagnosis. Test biserial throughout; last-formed chambers with test wall flexure resulting in projections attached to the previous chamber in the row; no accessory apertures are present along the zigzag suture; chamber surface finely costate; test wall calcareous, micrcroperforate.
Description. Test biserial throughout. Proloculus is smaller than the second chamber. Chambers are subglobular to reniform in shape, tilted to the axis of growth at least in the adult portion of the test. Chamber projections attached to the previously formed ones in the row are present in the morphologically advanced  tests.  Sutures  are  distinct,  depressed,  straight  to curved, oblique to the test axis of growth. Periphery broadly rounded, without peripheral structures. Aperture is situated at the base of the last-formed chamber and is bordered by two symmetrical periapertural flanges. No accessory apertures are present along the zigzag suture. Chamber surface is ornamented with fine, closely spaced and often discontinuous costae. Test wall is calcareous, hyaline, microperforate.

Entries in the Catalog of original descriptions: Huberella

Distinguishing features:
Parent taxon (Heterohelicidae): Aperture symmetrical, ranging from a low slit to a high arch at the base of the final chamber, becoming terminal in uniserial taxa.
This taxon: Biserial throughout, chambers with projections along the medial suture, like Pseudoguembelina, but without supplementary apertures, wall texture finely costate.

Geological Range:
Last occurrence (top): at top of D. concavata zone (100% up, 85.6Ma, in Santonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within H. helvetica zone (92.51-93.52Ma, base in Turonian stage). Data source: Total of ranges 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: Heterohelicidae

Huberella compiled by the pforams@mikrotax project team viewed: 13-10-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/pforams/index.php?id=110293 Go to Archive.is to create a permanent copy of this page - citation notes

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