Matthew Boulanger and R. Lee Lyman of the University of Missouri, Columbia, compiled radiocarbon-date databases for megafaunal remains and Paleoindian sites in the northeastern United States.
Notes on verification
Confirmed by Science/AAAS news coverage, the peer-reviewed Quaternary Science Reviews paper, and the author's university faculty page. Multiple independent, high-quality sources corroborate all details of the claim. [tier=gold indep_score=1.0 clusters=3 claim_tier=everyday]
Sources
- News - Was It Climate Change or the “Overkill Hypothesis”? - Archaeology Magazine (seed:history_and_archaeology)
- https://www.science.org/content/article/what-killed-great-beasts-north-america (corroboration)
- https://www.sciencedirect.com/science/article/abs/pii/S0277379113004678 (corroboration)
- https://faculty.missouri.edu/~lymanr/ (corroboration)