Calcareous nannofossil species richness across the Paleocene-Eocene Thermal Maximum

The Paleocene-Eocene Thermal Maximum (PETM, ~5 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 calcareo...

Full description

Bibliographic Details
Main Authors: Gibbs, Samantha J, Bown, Paul R, Sessa, Jocelyn A, Bralower, Timothy J, Wilson, Paul A
Format: Dataset
Language:English
Published: PANGAEA 2006
Subjects:
113-690
198-1209
Bass_River_Site
BR
CDRILL
COMPCORE
Composite Core
Core drilling
DRILL
Drilling/drill rig
Joides Resolution
Leg113
Leg174AX
Leg198
North American East Coast
North Pacific Ocean
Ocean Drilling Program
ODP
South Atlantic Ocean
Wilson_Lake
WL
Pacific
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.771929
https://doi.org/10.1594/PANGAEA.771929
Description
Summary:The Paleocene-Eocene Thermal Maximum (PETM, ~5 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.

Similar Items