A fossil snail found in sediment layers beneath the glyptodont skeleton at the same site was previously dated to about 32,000 years old.
Notes on verification
Corroborated by CONICET press release and multiple news outlets attributing the 32,000-year snail date to researcher Martín de los Reyes, and stratigraphically consistent with the peer-reviewed PLOS ONE paper's dating of the Eloisa Member (~30,000-16,000 YBP). However, most secondary sources appear to reproduce the same press release rather than independently verifying the specific snail date, and no independent re-dating or species identification was found.
Sources
- Hallan restos de un gliptodonte con marcas de origen humano que replantean las hipótesis sobre el poblamiento de América | CONICET (conicet.gov.ar)
- https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0304956 (journals.plos.org)
- https://www.infobae.com/america/ciencia-america/2024/07/17/habia-humanos-en-el-area-metropolitana-de-buenos-aires-hace-20-mil-anos-la-pista-esta-en-los-restos-de-un-gliptodonte/ (infobae.com)
- https://www.lasintesis.com.ar/2024/07/18/huesos-que-dan-nuevas-pistas-sobre-los-primeros-pobladores-del-continente (lasintesis.com.ar)