No worries, though I did not mention Polynesians.

This is not the venue to parse out what Australasian means, but, at least genetically, we would be discussing a much older population.

It is by definition about seafaring people, however, as the only accepted migration path to the americas has been over the bering straights.

edit: oops. now i see where you are coming from. Mea culpa. see comment re Pleistocene boats. Apologies for my derp