(Table DR1) Abundance of benthonic foraminifera in sediments from ODP Hole 113-690, supplement to: Thomas, Ellen (2003): Extinction and food at the seafloor: A high-resolution benthic foraminiferal record across the initial Eocene thermal maximum, Southern Ocean site 690. GSA Special Paper: Causes and consequences of globally warm climates in the Early Paleogene, 319-332Ellen Thomas
A mass extinction of deep-sea benthic foraminifera has been documented globally, coeval with the negative carbon isotope excursion (CIE) at the Paleocene-Eocene boundary, which was probably caused by dissociation of methane hydrate. A detailed record of benthic foraminiferal faunal change over ~30 k.y. across the carbon isotopic excursion at the Ocean Drilling Program Site 690 (Southern Ocean) shows that shortly before the CIE absolute benthic foraminiferal abundance at that site started to increase. 'Doomed species'...
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