SciencePrehistoric (Early Holocene, ~9000-11000 BP)Patagonia, Argentinahigh confidence

Researchers from IDEAus-CONICET found two human individuals in Camarones, Chubut province, radiocarbon-dated to 9200 and 9700 years before present, equivalent to approximately 10,400 and 11,000 calendar years old.

Notes on verification

Confirmed by peer-reviewed publication (ScienceDirect) and multiple independent Argentine news outlets plus subsequent science journalism, with consistent radiocarbon and calibrated date figures. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=0.867 clusters=3 claim_tier=notable | framework convergence=partial on Radiocarbon dating (AMS) of the same two skeletal individuals from the Camarones site, as reported in the peer-reviewed study published via ScienceDirect (upstreams: IDEAus-CONICET research team (Gómez Otero, Svoboda, Banegas, Millán), University of Arizona AMS radiocarbon laboratory, Institute of Energy and the Environment, Pennsylvania) — publishers independent, evidence may not be | kind=empirical eligibility=high]

Sources