SciencePrehistoric (~130,000 years ago)San Diego, California, USAhigh confidence

Archaeologists found mastodon bones at a site dated to around 130,000 years ago.

Notes on verification

The dating of the Cerutti Mastodon site to ~130,000 years ago via uranium-thorium dating is well corroborated by the original 2017 Nature paper and multiple independent science journalism sources. The claim as narrowly stated (mastodon bones found at a site dated to ~130,000 years ago) is not contested; only the interpretation that humans caused bone breakage is disputed among archaeologists. [tier=gold indep_score=1.0 clusters=3 claim_tier=notable | framework convergence=single on Nature (2017) 'A 130,000-year-old archaeological site in southern California, USA' by Holen et al. (upstreams: Cerutti Mastodon site excavation (San Diego Natural History Museum), Nature 2017 paper by Holen et al., Uranium-thorium radiometric dating) — publishers independent, evidence may not be | kind=empirical eligibility=high]

Sources