Nannoplankton extinction and origination across the Paleocene-Eocene thermal maximum

Online Access: Get full text
doi: 10.1126/science.1133902
Author(s): Gibbs, Samantha J.; Bown, Paul R.; Sessa, Jocelyn A.; Bralower, Timothy J.; Wilson, Paul A.
Author Affiliation(s): Primary:
National Oceanography Centre, School of Ocean and Earth Sciences, Southampton, United Kingdom
University College London, United Kingdom
Pennsylvania State University, United States
Volume Title: Science
Source: Science, 314(5806), p.1770-1773. Publisher: American Association for the Advancement of Science, Washington, DC, United States. ISSN: 0036-8075 CODEN: SCIEAS
Note: In English. 32 refs.; illus.
Summary: The Paleocene-Eocene Thermal Maximum (PETM, ∼55 million years ago) was an interval of global warming and ocean acidification attributed to rapid release and oxidation of buried carbon. We show that the onset of the PETM coincided with a prominent increase in the origination and extinction of calcareous phytoplankton. Yet major perturbation of the surface-water saturation state across the PETM was not detrimental to the survival of most calcareous nannoplankton taxa and did not impart a calcification or ecological bias to the pattern of evolutionary turnover. Instead, the rate of environmental change appears to have driven turnover, preferentially affecting rare taxa living close to their viable limits.
Year of Publication: 2006
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Biostratigraphy; Burlington County New Jersey; C-13/C-12; Carbon; Cenozoic; Eocene; Extinction; Global change; Global warming; Isotope ratios; Isotopes; Leg 113; Leg 174AX; Leg 198; Maud Rise; Nannoplankton; New Jersey; North Pacific; Northwest Pacific; ODP Site 1209; ODP Site 690; Ocean Drilling Program; Pacific Ocean; Paleocene; Paleoclimatology; Paleoecology; Paleoenvironment; Paleogene; Paleotemperature; Plankton; Shatsky Rise; Southern Ocean; Stable isotopes; Tertiary; United States; Weddell Sea; West Pacific; Wilson Lake
Coordinates: S650938 S650937 E0011218 E0011218
N323900 N324000 E1583100 E1583000
Record ID: 2007055398
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.