This hypothetical family would reach an expanse that stretches from the Nile Valley to northern Tanzania and into Nigeria and DR Congo, with the Songhay languages along the middle reaches of the Niger River as a geographic outlier. The inclusion of the Songhay languages is questionable, and doubts have been raised over the Koman, Gumuz and Kadu branches.
This hypothetical family would reach an expanse that stretches from the Nile Valley to northern Tanzania and into Nigeria and DR Congo, with the Songhay languages along the middle reaches of the Niger River as a geographic outlier The inclusion of the Songhay languages is questionable and doubts have been raised over the Koman, Gumuz and Kadu branches.