Nannoplankton Extinction and Origination Across the Paleocene-Eocene Thermal Maximum

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.

Gibbs et al., 2006. Nannoplankton Extinction and Origination Across the Paleocene-Eocene Thermal Maximum. Science 314: 1770-1773. Article.

0 Responses to “Nannoplankton Extinction and Origination Across the Paleocene-Eocene Thermal Maximum”



  1. Leave a Comment

Leave a Reply




				
  • Search

  • Categories

  • Tags

  • Post Date

Subscribe to the RSS feed

Follow AnneMarin on Twitter

Blog Stats

  • 1,407,423 hits

OA-ICC HIGHLIGHTS

Ocean acidification in the IPCC AR5 WG II

OUP book


%d bloggers like this: