Climate of the Past
Climate of the Past
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Articles | Volume 18, issue 4
Articles | Volume 18, issue 4
https://doi.org/10.5194/cp-18-681-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-18-681-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 4
Research article
 | 
08 Apr 2022
Research article |  | 08 Apr 2022

Terrestrial carbon isotope stratigraphy and mammal turnover during post-PETM hyperthermals in the Bighorn Basin, Wyoming, USA

Sarah J. Widlansky, Ross Secord, Kathryn E. Snell, Amy E. Chew, and William C. Clyde

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Short summary
New stable isotope records from pedogenic carbonates through the ETM2, H2, and possibly I1 hyperthermals from the Bighorn Basin highlight significant spatial variability in the preservation and magnitude of these global climate events in paleosol records. These data also provide important climate context for the extensive early Eocene mammal fossil record from the southern Bighorn Basin and support previous hypotheses that pulses in mammal turnover corresponded to the ETM2 and H2 hyperthermals.
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