Gigantic mysticete predators roamed the Eocene Southern Ocean
نویسندگان
چکیده
منابع مشابه
The ocean circulation in the southern hemisphere and its climatic impacts in the Eocene
Opening of Southern Ocean gateways may have had a controlling influence on the evolution of global climate. The largest step in the history of Cenozoic climate, from an Eocene bGreenhouseQ toward the modern glaciated state, is correlated with opening of a deep water connection between the Southern Indian and Southern Pacific Oceans. This study synthesizes results from previous work, assesses th...
متن کاملThe seasonal distribution and habitat use of marine top predators in the southern Indian Ocean
1 SoftFrog cc, PO Box 67, Kei Mouth, 5260, South Africa. Email: [email protected] 2 Percy FitzPatrick Institute, DST/NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa 3 Marine and Coastal Management, Department of Environmental Affairs and Tourism, Private Bag X2, Rogge Bay 8012, South Africa 4 Mammal Research Institute, Department of Zoology & Entomology, Un...
متن کاملEocene Circulation Of The Southern Ocean: Was Antarctica Kept Warm By Subtropical Waters?
[1] Near the Eocene's close ($34 million years ago), the climate system underwent one of the largest shifts in Earth's history: Antarctic terrestrial ice sheets suddenly grew and ocean productivity patterns changed. Previous studies conjectured that poleward penetration of warm, subtropical currents, the East Australian Current (EAC) in particular, caused Eocene Antarctic warmth. Late Eocene op...
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The Eocene-Pliocene deep sea ostracodes from the ODP site 744A (Kerguelen Plateau) are herein studied under the taxonomic and paleoecologic aspects. 28 species are identified, being the genera Krithe, Cytherella and Dutoitella the most diversified. A faunal threshold was recorded in the Early Oligocene, which is tentatively explained under the knowledge of the paleoceanographical studies carrie...
متن کاملWarm ocean processes and carbon cycling in the Eocene.
Sea surface and subsurface temperatures over large parts of the ocean during the Eocene epoch (55.5-33.7 Ma) exceeded modern values by several degrees, which must have affected a number of oceanic processes. Here, we focus on the effect of elevated water column temperatures on the efficiency of the biological pump, particularly in relation to carbon and nutrient cycling. We use stable isotope v...
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ژورنال
عنوان ژورنال: Antarctic Science
سال: 2019
ISSN: 0954-1020,1365-2079
DOI: 10.1017/s095410201800055x