Alan, a former Marine in his 30s, is a serial dater.He says he has dated hundreds of women since moving to San Francisco eight years ago.The find halted construction, and palaeontologist Tom Deméré of the San Diego Natural History Museum led a five-month excavation.
“I say that even for myself.” Alistair Pike, an archaeological scientist at the University of Southampton who specializes in uranium dating, notes that the team’s method relies on simplified models of how uranium seeps from groundwater into bone, but he sees no obvious flaws in the dating work.
Their contention, if correct, would force a dramatic rethink of when and how the Americas were first settled — and who by.
Most scientists subscribe to the view that Homo sapiens arrived in North America less than 20,000 years ago.
The latest study raises the possibility that another hominin species, such as Neanderthals or a, somehow made it from Asia to North America before that and flourished.
“It’s such an amazing find and — if it’s genuine — it’s a game-changer.