Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling
Firestone et al. · 2007
Proceedings of the National Academy of Sciences
Citation
Firestone et al. (2007). Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling. Proceedings of the National Academy of Sciences.
Author names and publication information are transcribed from the source; some author lists are abbreviated.
Editorial assessment & provenance
- Editorial assessment
- Strongly supports
- Source collection
- Peer Reviewed Literature
- Record type
- Paper
- Publication status
- Not independently checked
- Author affiliation
- YDB/CRG-associated authors (source classification)
- Source location
- Peer Reviewed Literature, row 3
- Snapshot imported
- 2026-10-08
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.

