Catalog - Hantkenina (Applinella) trinitatensis Catalog - Hantkenina (Applinella) trinitatensis

CATALOG OF ORIGINAL DESCRIPTIONS: Hantkenina (Applinella) trinitatensis 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.


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Other pages this level: H. (Applinella) trinitatensis

Hantkenina (Applinella) trinitatensis

Citation: Hantkenina (Applinella) trinitatensis Bronnimann 1950
taxonomic rank: Species
Type sample (& lithostrat): Hospital Hill fomation,
Type age (chronostrat): upper Eocene
Type locality: Trinidad:
Type repository: Washington; USNM

Current identification/main database link: Hantkenina liebusi Shokhina 1937


Original Description

The subelliptical closely coiled test is composed of four to six chambers which are inflated and increase gradually in size as added. They are longer than broad and slightly separated peripherally, especially in the last ontogenetic stages where they become somewhat bulbose. The sutures are sigmoidal, distinct, and fairly depressed. Spines, mostly broken off, are long and hollow, and always situated below the anterior sutures. The aperture is an arched tripartite slit with broad lateral projections extending into the umbilicus. The surface is smooth and the walls are finely perforate

Size:
Maximum diameter without spines: 0.4 - 0.7 mm. (holotype .54 mm.). Length of spines: ± 0.2 mm. (holotype 0.18 mm.)

References:

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


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Hantkenina (Applinella) trinitatensis compiled by the pforams@mikrotax project team viewed: 16-9-2024

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