Overview
- The Science paper, published Thursday, argues the site is no older than 8,200 years and could date between 4,200 and 8,200 years.
- Authors report a volcanic ash layer about 11,000 years old beneath the finds and say creek erosion mixed Ice Age wood into younger sediments, skewing radiocarbon dates.
- Archaeologists including Michael Waters and original excavator Tom Dillehay dispute the reinterpretation because the sampling sits outside key deposits and ignores artifacts directly dated to about 14,500 years.
- Critics cite a mastodon tusk tool, a wooden lance, and a fire-hardened digging stick as well-dated cultural items, while the study team counters that these ages are not proven and that they sampled within, upstream, and downstream of the site.
- Monte Verde helped topple the “Clovis First” idea, yet other pre-Clovis sites in North America, such as Cooper’s Ferry and the Debra L. Friedkin site, keep the broader timeline contested and set up calls for new excavations, tephra mapping, and independent verification.