I read them all.
I was not familiar with Willard Bascom.
I had completely forgotten about the Black Sea megaflood, which explains the transition from fresh water to salt water.
I've lived in Portland and Seattle for a long time and was not aware of our own glacial megafloods until I moved here.
There is also a strong academic consensus in this area that most early settlements in the northwest were on the coast and disappeared under the post-glacial Pacific Ocean.
And thanks for the amphora photo. I love that utensil. It was the standardized canned goods/bottle/shipping container of the Mediterranean for 4000 years!
:’) My pleasure.