Savanna languages

The Savannas family of languages, also known as Gur–Adamawa (Adamawa–Gur), is a branch of the Niger–Congo languages that includes Greenberg's Gur and Adamawa–Ubangui families. The link was demonstrated in Kleinewillinghöfer (1996) and has been accepted as established by later researchers, who have gone further in noting that the Adamawa and Gur languages do not form coherent groups, and are not necessarily more closely related internally than they are to each other. There are several clusters of Adamawa languages; among the Gur languages, only the core of that proposal (Central Gur) has been retained, though it is possible that some of the 'peripheral' languages may turn out to be related to each other. Kleinewillinghöfer et al. (2012) note that a reconstruction of proto-Central Gur noun classes needs to include several Adamawa families. Senufo (ex-Gur) and Fali (ex-Adamawa) are excluded from Savannas, as they appear to be some of the more divergent branches of Niger–Congo. Dimmendaal (2008) excludes the Ubangian family from Niger–Congo altogether, stating that it "probably constitutes an independent language family that cannot or can no longer be shown to be related to Niger–Congo (or any other family)," though the Ubangian languages are themselves not a valid group, and the Gbaya branch may turn out to be related to Gur. Apart from such exceptions, Dimmendaal notes that the Savanna languages "can be shown to be genetically related beyond any reasonable doubt. The evidence is not only lexical in nature, it is based primarily on a range of cognate grammatical morphemes."