Catalog - Chiloguembelitria danica Catalog - Chiloguembelitria danica

CATALOG OF ORIGINAL DESCRIPTIONS: Chiloguembelitria danica Hofker 1978

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 -> C -> Chiloguembelitria -> Chiloguembelitria danica
Other pages this level: C. biseriata, C. danica, C. hofkeri, C. trilobata

Chiloguembelitria danica

Citation: Chiloguembelitria danica Hofker 1978
taxonomic rank: Species
Type specimens: pl. 4, fig. 14, scale equals 50 microns.
Type sample (& lithostrat): DSDP 47.2-4-11 130-32cm, 106.4 mbsf (leg 6)
Type age (chronostrat): Danian
Type locality: Shatsky Rise, northern Pacific Ocean.; 2689 m . deep; lat. 32°26.9' N., long. 157°42.7' E.
Type repository: Depository not given [probably deposited in the author's collection].

Current identification/main database link: Guembelitria cretacea Cushman 1933


Original Description

Test small, elongate, with triserially arranged chambers throughout. Chambers globular, with distinctly depressed sutures in between, gradually increasing in size so that the whole test remains slender. Walls thin, consisting of only one lamella, without secondary thickening. Walls finely perforate, with small blunt pustules. Aperture high, elongate, narrow, with protruding lip at the axial side of the aperture, as in Chiloguembelina


Size:
Length of test up to 0.1 mm; larger breadth near the apertural end 0.05 mm.

Extra details from original publication
The species is extremely common in the lower half of the S. trinidadensis zone (Danian) and becomes rare at the end of its range at the top of this zone.
Several gentes of planktonic and benthonic foraminifera could be studied in the material from the Danian-Paleocene sequence of samples from drill hole DSDP 47.2. They show that significant mechanical disturbance of the Paleocene-Danian from this drill hole, as supposed by some authors, is not likely.

References:

Hofker, J. (1978). Analysis of a large succession of samples through the Upper Maastrichtian and Lower Tertiary of Drill Hole 47.2, Shatsky Rise, Pacific, Deep Sea Drilling Project. Journal of Foraminiferal Research. 8(1): 46-75. gs


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Chiloguembelitria danica compiled by the pforams@mikrotax project team viewed: 14-10-2024

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