>> Hm... I can't find the reference now but they did recently find a well preserved ocean-going twin hulled canoe that was dated to around 120,000 years old. <<
Daaaaamn. That is way older than anything I've heard, and older than modern Homo sapiens.
>>Oceanic travel does make more sense, even with land bridges but as you say, anywhere they put in to port is now well and truly submerged.<<
I said most. It depends entirely on the coastline. Where it's a shallow slope, any small rise in sea level will submerge a large margin. But where it's steep, a much greater increase is required to make much headway. References I have seen include a few on beaches and some from offshore dives.
*ponder* If I were searching, I know one thing I'd look for: clam gardens along the now-submerged former coast. They're likely to leave scallop marks that should be visible with various modern scanning devices. Backtrack the shift in ocean levels and that should tell you roughly when that coast was at the right waterline to have people working it.
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dancing_serpent
Re: Yes ...
Date: 2022-10-05 07:55 pm (UTC)Daaaaamn. That is way older than anything I've heard, and older than modern Homo sapiens.
>>Oceanic travel does make more sense, even with land bridges but as you say, anywhere they put in to port is now well and truly submerged.<<
I said most. It depends entirely on the coastline. Where it's a shallow slope, any small rise in sea level will submerge a large margin. But where it's steep, a much greater increase is required to make much headway. References I have seen include a few on beaches and some from offshore dives.
*ponder* If I were searching, I know one thing I'd look for: clam gardens along the now-submerged former coast. They're likely to leave scallop marks that should be visible with various modern scanning devices. Backtrack the shift in ocean levels and that should tell you roughly when that coast was at the right waterline to have people working it.