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Evidence for the recovery of terrestrial ecosystems ahead of marine primary production following a biotic crisis at the Cretaceous-Tertiary boundary

Journal of the Geological Society

By:
, , , , , , and
DOI: 10.1144/jgs.158.5.737

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Abstract

The fossil record demonstrates that mass extinction across the Cretaceous–Tertiary (K–T) boundary is more severe in the marine than the terrestrial realm. We hypothesize that terrestrial ecosystems were able to recover faster than their marine counterparts. To test this hypothesis, we measured sedimentary δ13C as a tracer for global carbon cycle changes and compared it with palaeovegetational changes reconstructed from palynomorphs and cuticles across the K–T boundary at Sugarite, New Mexico, USA. Different patterns of perturbation and timescales of recovery of isotopic and palaeobotanical records indicate that the δ13C excursion reflects the longer recovery time of marine versus terrestrial ecosystems.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Evidence for the recovery of terrestrial ecosystems ahead of marine primary production following a biotic crisis at the Cretaceous-Tertiary boundary
Series title:
Journal of the Geological Society
DOI:
10.1144/jgs.158.5.737
Volume
158
Year Published:
2001
Language:
English
Publisher:
Geological Society of London
Description:
4 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the Geological Society
First page:
737
Last page:
740
Country:
United States
State:
New Mexico
City:
Sugarite
Other Geospatial:
Horse Mesa