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Predatory drilling in Tertiary larger foraminifera from India

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Authors:Syed, Rosina; Sarkar, Sampa; Sengupta, S.
Author Affiliations:Primary:
University of Calcutta, Department of Geology, Calcutta, India
35 Ballygunge Circular Road, India
Volume Title:Current Science (Bangalore)
Source:Current Science (Bangalore), 106(8), p.variously paginated. Publisher: Current Science Association, Bangalore, India. ISSN: 0011-3891
Publication Date:2014
Note:In English. 22 refs.; illus., incl. geol. sketch maps
Summary:Evidence of predatory drilling in the microspheric tests of Middle Eocene larger foraminifera Nummulites obtusus (Sowerby) from western Kutch is reported in this communication from the Indian Tertiary sequences. Evidence in the form of repair structures present in the foraminiferal wall and indicative of post-attack healing, has been described and illustrated. While biological identity of the predator remains enigmatic at the present stage of investigation, this report is likely to throw light on similar instances of predator-prey interaction in previously accounted Tertiary larger foraminiferal assemblages of India.
Subjects:Benthic environment; Biodegradation; Bioerosion; Biogenic processes; Biogenic structures; Bioreclamation; Borings; Cenozoic; Drilling; Eocene; Erosion; Foraminifera; Microfossils; Middle Eocene; Paleogene; Predators; Reclamation; Sedimentary structures; Tertiary; Asia; Gujarat India; India; Indian Peninsula; Kutch India; Harudi Formation; Harudi India; Naredi Formation
Coordinates:N200000 N245000 E0743000 E0680000
Record ID:868285-4
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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