Catalog - Antarcticella Catalog - Antarcticella

CATALOG OF ORIGINAL DESCRIPTIONS: Antarcticella Loeblich & Tappan 1987

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 -> A -> Antarcticella
Other pages this level: Abathomphaloidea, Abathomphalus, Acarinina, Alanlordella, Alicantina, Alloglobigerinoides, Anaticinella, Anomalina, Antarcticella, Archaeoglobigerina, Archaeoglobitruncana, Archaeoguembelitria, Aristerospira, Ascoliella, Astrorotalia, Asymetria

Antarcticella

Citation: Antarcticella Loeblich & Tappan 1987
taxonomic rank: genus
Type species: Candeina antarctica Leckie and Webb. 1985

Current identification/main database link: Antarcticella Loeblich & Tappan 1987


Original Description

Test small, subglobular. rapidly enlarging rounded chambers in low trochospiral coil of one and a half to two and a half whorls, three and a half to five chambers in the final whorl, spiral side with approximately level spire and very slightly depressed radial suiures. umbilical side with slightly depressed sutures around the closed umbilicus, final chamber ampullate, from the spiral side appearing somewhat smaller lhan the penultimate one but extending over the umbilicus on the opposite side as in Globigerinita. numerous small accessory apertures between bridgelike projections occur along the margin, periphery broadly rounded, peripheral outline lobulate; wall calcareous, very thin, finely perforate, smooth except for prominently developed pustules in the region adjacent to the sutures and umbilicus of the umbilical side: aperiure of the early stage interiomarginal and umbilical, replaced by the row of small openings along the margin of the ampullate final chamber where this covers the earlier umbilicus.

Extra details from original publication
Remarks: Originally placed in Candeina. the present type species differs in lacking true sutural openings but has small openings along the margin of the ampullate final chamber as in Globigerinita. It differs from Globigerinita in having numerous small openings between distinctly projecting digitate extensions of the margin of the ampullate chamber and in the distinctly pustulose wall surface adjacent to the sutures and umbilicus.

Occurrence: U. Oligocene to M. Miocene: Antarctic: Ross Sea.

References:

Leckie, R. M. & Webb, P. (1985). Candeina antarctica, n. sp. and the phylogenetic history and distribution of Candeina spp. In the Paleogene-Early Neogene of the Southern Ocean. Journal of Foraminiferal Research. 15(2): 65-78. gs

Loeblich, A. R. & Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York.. 1-970. gs


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Antarcticella compiled by the pforams@mikrotax project team viewed: 11-10-2024

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