Pre-Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift
O'Keefe et al. · 2023
Science
Citation
O'Keefe et al. (2023). Pre-Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift. Science. https://doi.org/10.1126/science.abo3594
Author names and publication information are transcribed from the source; some author lists are abbreviated.
Editorial assessment & provenance
- Editorial assessment
- Neutral; evidence supports
- Source collection
- Peer Reviewed Literature
- Record type
- Paper
- Publication status
- Not independently checked
- Author affiliation
- Unaffiliated with YDB/CRG teams (source classification)
- Source location
- Peer Reviewed Literature, row 210
- Snapshot imported
- 2026-10-08
Source notes
Their data very strongly supports the YDIH. Massive wildfires coinciding with the extinction of multiple species, precisely at the onset of the YD (2 sigma) lead the authors to conclude that humans caused the wildfires and they were what killed the megafauna.
Original source symbols
Assessment: 😐✔️ · Proxies: 🐘🔥
Editorial assessments are those of the bibliography’s curators. The authors’ conclusions should be read in the original publication. Corrections, retractions, and review status have not been comprehensively audited.

