In particular, they pinpointed the region between the Sulu Sea and the Sulawesi Sea, as the likely point of origin of a pre-adapted maritime culture that expanded north towards Taiwan and east to New Guinea and the Pacific, using the genetic evidence of the dispersal of Haplogroup E as well as putative archaeological evidence with the "flake-blade" stone tool assemblages found in the Philippines and Taiwan. However, they also caution that their study only accounts for ~15% of mtDNA lineages in Southeast Asia and that it was not enough to pinpoint other directions of dispersal from neighbouring groups.