Catalog - Hantkenina (Hantkenina) suprasuturalis

CATALOG OF ORIGINAL DESCRIPTIONS: Hantkenina (Hantkenina) suprasuturalis Bronnimann 1950

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: pf_cat -> H -> Hantkenina (Hantkenina) -> Hantkenina (Hantkenina) suprasuturalis
Other pages this level: H. (Hantkenina) suprasuturalis, H. (Hantkenina) thalmanni

Hantkenina (Hantkenina) suprasuturalis

Citation: Hantkenina (Hantkenina) suprasuturalis Bronnimann 1950
Rank: Species

Current identification/main database link: Hantkenina alabamensis Cushman 1924

Original Description
The closely coiled test is subelliptical to slightly angulate in outline and large for the genus. The five to six inflated chambers are subdivided by straight to slightly curved, much depressed sutures. The umbilicus is small and deep and generally covered by the broad lateral projections of the aperture. The basal portions of the short spines are partially incorporated within the adjacent younger chamber. The spines are situated distinctly above the sutures except in the earliest stages of the last whorl where their insertion is like that of Hantkenina (Hantkenina) alabamensis Cushmann or of Hantkenina (Applinella) longispina (Cushmann). The enclosure of the anterior portion of the spines by the backward-growing adjacent chamber is a characteristic feature of the three to four last-formed chambers. For a short distance, the spines form the outline of the test which therefore is broken and angular.

The surface is smooth except for the early portion of the last whorl and the walls are finely perforate. The aperture is a slit-like opening as in H. alabamensis, but narrower, and it may even be reduced in height. The lateral lips are large and very broad and cover partsof the umbilicus.

Size: Maximum diameter without spines: 0.6-1.0 mm. Length of spines: 0.05-0.1 mm.


Brönnimann, P. (1950b). The Genus Hantkenina Cushman in Trinidad and Barbados, B. W. I. Journal of Paleontology. 24(4): 397-420. gs


Hantkenina (Hantkenina) suprasuturalis compiled by the pforams@mikrotax project team viewed: 22-1-2022

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