The 29-site sample examined by David Meltzer's team included Clovis sites in North America.
Sources
- News - What Caused the Deep Freeze of the Younger Dryas? - Archaeology Magazine (archaeology.org)
- https://www.pnas.org/doi/10.1073/pnas.1401150111 (pnas.org)
- https://www.heritagedaily.com/2014/05/comet-theory-over-cold-snap-and-clovis-culture-proven-false/103015 (heritagedaily.com)
- https://pmc.ncbi.nlm.nih.gov/articles/PMC4040610 (pmc.ncbi.nlm.nih.gov)
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