Clovis Points in Alaska

[Minimalist]

but dated too early to be the ancestors of Clovis. The implication is that Clovis spread East to West/Northwest.

http://bionews-tx.com/news/2013/11/01/te...h-america/

In the paper, the researchers show that a new archaeological site at Serpentine Hot Springs in Alaska’s Bering Land Bridge National Preserve, contains fluted points in a stratified geologic deposit dating to no earlier than 12,400 calendar years ago, and that these results suggest that Alaska’s fluted-point complex is too young to be ancestral to Clovis, and that it instead represents either a south-to-north dispersal of early Americans or transmission of fluting technology from temperate North America, which in turn suggests that peopling of the Americas and development of Paleoindian technology were much more complex than traditional models predict.

Stanford's Solutrean Hypothesis is looking better and better.