Noun
ethnogenesis (countable and uncountable, plural ethnogeneses)
The emergence of a distinct, recognizable, ethnic identity.
Also, a newer study, Ossenberg, et al., "Ethnogenesis and craniofacial change in Japan from the perspective of nonmetric traits" (Anthropological Science v.114:99-115) is an updated analysis published in 2006 which confirms this finding. Source: Internet