After the Younger Dryas ended around 11,700 years ago, warming and deglaciation accelerated, raising sea level over subsequent millennia and drowning low coastal areas.
The video invokes the debated Younger Dryas impact hypothesis and argues that this flooding may have hidden coastal evidence across the roughly 117,000-year interval between the Cerutti Mastodon site, dated to about 130,000 BP, and Clovis at about 13,000 BP. It also suggests Clovis people may descend from survivors of an older population. Neither conclusion is established.
At the Last Glacial Maximum, about 18,000–20,000 years ago, sea level was roughly 120 metres (400 feet) lower. The Aucilla River sinkhole remains on land, though its archaeological deposits are waterlogged. Pre-Clovis evidence was not exclusively inland: Florida's Page-Ladson site is submerged. No cited source establishes that 117,000 years of coastal records now lie on the seabed or that less than 20% of the area has been explored.
Sources
Younger Dryasen.wikipedia.orgThe Younger Dryas (YD, Greenland was the final climatic phase of the Last Glacial Period that occurred from around 12,900 to 11,700 years Before Present
The Younger Dryas impact hypothesis: a cosmic catastropheresearchgate.netIn this paper we review the evidence for the Younger Dryas impact hypothesis (YDIH), which proposes that at ∼12.9k cal a BP North America, South America, ...
The case of the Younger Dryas Impact Hypothesis - PMCpmc.ncbi.nlm.nih.govby JL Powell · 2022 · Cited by 49 — The hypothesis proposes that the airburst or impact of a comet ∼12,850 years ago caused the ensuing ∼1200-year-long Younger Dryas (YD) cool period
The Younger Dryas Impact: A Failed Hypothesisskepticalinquirer.orgby CR Chapman · Cited by 2 — The favored hypothesis is that YD cooling resulted from a reduction in the North Atlantic system of ocean currents (such as the Gulf Stream)
The Younger Dryas impact hypothesis: A requiemsciencedirect.comby N Pinter · 2011 · Cited by 179 — The Younger Dryas (YD) impact hypothesis is a recent theory that suggests that a cometary or meteoritic body or bodies hit and/or exploded over North America ...
Site Formation Processes and Archaeological Preservation ...onlinelibrary.wiley.comby NK Bentley · 2025 · Cited by 1 — Sloth Hole is located in an 11 m deep mid-channel sinkhole in the west run of the lower Aucilla River and was originally excavated by the ARPP ...
Aucilla River Prehistory Projectfloridamuseum.ufl.eduThe Aucilla River Prehistory Project was an archaeological and paleontological project excavating a particularly rich series of deposits ...
Page–Ladson siteen.wikipedia.orgAt least three hearths were identified along with various stone points, scrapers, adzes, and gouges that were found, as well as antler points used to press ...
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