Catalog - Globanomalina laccadivensis

CATALOG OF ORIGINAL DESCRIPTIONS: Globanomalina laccadivensis Fleisher 1974

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 -> G -> Globanomalina -> Globanomalina laccadivensis
Other pages this level: G. laccadivensis, G. ovalis, G. ovalis lakiensis, G. praepumilio, G. rakhiensis, G. simplex, G. simplex orbicularis, G. wilcoxensis globulosa

Globanomalina laccadivensis

Citation: Globanomalina laccadivensis Fleisher 1974
Rank: Species
Type specimens: 211400
Type repository: Washington; USNM

Linked specimens: USNM-211400 USNM-211401 USNM-211403 USNM-211404 USNM-211402 USNM-211406 USNM-211405

Current identification:


Original Description

"The minute strongly compressed test contains at leat 14 chambers arranged in a very low trochospire, with 5ÃÉÂÇÃÇÂ_ to 6ÃÉÂÇÃÇÂ_ chambers in the final whorl. The test wall is penetrated by numerous irregularly distributed pored which are not clearly visibly under the binocular microscope. In axial view, the test is distinctly rounded but slightly convex, and the early chambers are obscured by wall thickening. The dorsal sutures are curved and very slightly depressed, and the closely appressed chambers can be distinguished only with difficulty. The peripheral margin is rounded and consists os a broad imperforate band, which is particularly developed in the early chambers of the final worl. No raised keel is present. The final chamber projects above the remainder of the last whorl as seen in lateral view. The ventral sutures are straight and slightly depressed, and the chambersare more distinct and wedge-shaped in ventral than in dorsal view. The umbilicus is small and shallow and may be present only as a slight depression in smaller forms. The aperture is a low umbilical to extraumbilical arch, bordered by a faint rim, at the base of the poorly defined apertural face.

Size:

Etymology:

Extra details from original publication

Editors' Notes
Problematica - Resembles an igorinid but occurs stratigraphically above the last occurrence of Igorina; we have not found this taxon in our researches; needs further study.

References:

Fleisher, R. L. (1974a). Cenozoic planktonic foraminifera and biostratigraphy, Arabian Sea, Deep Sea Drilling Project, Leg 23A. Initial Reports of the Deep Sea Drilling Project. 23: 1001-1072. gs V O


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Globanomalina laccadivensis compiled by the pforams@mikrotax project team viewed: 30-9-2022

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