Kakalih skenario utama kausulang, wit pangius ring Afrika Tengah, taler wit pangius saking irika, utawi  pahan sane kakawitin dados gelombang sane nyebar ka pasisi kangin miwah kelod, antuk asiki gelombang sane ngalintangin cekungan Kongo nuju Afrika Kangin, taler malih siki nuju  pahan Kelod  nyujur segara Afrika miwah Telabah Kongo nuju Angola.
Two main scenarios are proposed, an early expansion to Central Africa, and a single origin of the dispersal radiating from there, or an early separation into an eastward and a southward wave of dispersal, with one wave moving across the Congo basin towards East Africa, and another moving south along the African coast and the Congo River system towards Angola.