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Bulimina arabiensis, a new species of benthic Foraminifera from the Arabian Sea

Shivranjan K. Bharti and Arun D. Singh
Bulimina arabiensis, a new species of benthic Foraminifera from the Arabian Sea
Journal of Foraminiferal Research (July 2013) 43 (3): 255-261

Abstract

Study of the 30 kyr record of benthic foraminiferal assemblages in a sediment core retrieved from the base of the oxygen-minimum zone off Goa (eastern Arabian Sea), led to the discovery of a new species, Bulimina arabiensis. It dominates the benthic foraminiferal assemblage in the fine size fraction (63-125 mu m), with a maximum abundance of >60% during the last glacial period between 17.5-23 kyr BP. The morphological characteristics of this species suggest its preference for infaunal microhabitat and low-oxygen concentrations of bottom water. The down-core abundance pattern of B. arabiensis shows millennial-scale variation almost paralleling the organic-carbon-concentration (%C (sub org) ) sediment record. The abundance of B. arabiensis appears to be controlled by both paleoproductivity and bottom-oxygen conditions.


ISSN: 0096-1191
EISSN: 1943-264X
Coden: JFARAH
Serial Title: Journal of Foraminiferal Research
Serial Volume: 43
Serial Issue: 3
Title: Bulimina arabiensis, a new species of benthic Foraminifera from the Arabian Sea
Affiliation: Banaras Hindu University, Department of Geology, Varanasi, India
Pages: 255-261
Published: 201307
Text Language: English
Publisher: Cushman Foundation for Foraminiferal Research, Ithaca, NY, United States
References: 45
Accession Number: 2013-055647
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N15°31'60" - N15°31'60", E72°34'00" - E72°34'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Cushman Foundation for Foraminiferal Research. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201334
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