Articles | Volume 18, issue 4
https://doi.org/10.5194/cp-18-681-2022
https://doi.org/10.5194/cp-18-681-2022
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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Latest update: 11 Jul 2024
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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.