Change sector or zone
Covers the "Sepik Valley" reference area, coterminous with the "Sepik + Ramu" hypothesis (less the "Sepik + Ramu Marginal" sets, see 27-A to 27-F), within the wider reference area of the "Papuan" hypotheses.
Comprising 22 sets of languages (= 96 outer languages) spoken by communities in Australasia, centered on the Sepik and Lower Ramu valleys in New Guinea.