Berta branches – Greenberg placed into a core group he called Chari–Nile, to which he added all the remaining unclassified languages of Africa that did not have noun classes. The distinction between Chari–Nile and the peripheral branches has since been abandoned. On a lower level, he placed "Nilo-Hamitic" firmly within Nilotic, following a suggestion of Köhler, and placed Eastern Sudanic on a firmer foundation. Finally, he assigned the unclassified languages of the Nuba Hills of Kordofan to the Niger–Congo family, calling the result Congo–Kordofanian. The relationship has been accepted, with the exception of the "Tumtum" group, though the Kordofanian languages are no longer seen as being a primary branch, and the name 'Congo–Kordofanian' is no longer used. Greenberg's four families became the dominant conception of African languages, though his subclassification did not fare as well. Niger−Congo and Afroasiatic are nearly universally accepted, with no significant support for Hamitic or the independence of Bantu. Nilo-Saharan is still considered provisional. Khoisan is now rejected by specialists, except as a term of convenience, though it may be retained in less specialized literature. Classification The book classifies Africa's languages into four stocks not presumed to be related to each other, as follows: I. Congo–Kordofanian I.A Niger–Congo I.A.1 West Atlantic I.A.1.a Northern: Wolof, Serer-Sin, Fulani, Serer-Non, Konyagi, Basari, Biafada, Badyara (Pajade), Dyola, Mandyak, Balante, Banyun, Nalu, Cobiana, Cassanga, Bidyogo I.A.1.b Southern: Temne, Baga, Landoma, Kissi, Bulom, Limba, Gola I.A.2 Mande I.A.2.a Western I.A.2.a.1 Malinke, Bambara, Dyula, Mandinka, Numu, Ligbi, Huela, Vai, Kono, Koranko, Khasonke Bobo I.A.2.a.3 Mende, Loko, Gbandi, Loma, Kpelle (Guerze) I.A.2.a.4 Susu, Dyalonke I.A.2.a.5 Soninke, Bozo I.A.2.a.6 Duun, Dzuun, Jo, Seenku (Sembla), Kpan, Banka I.A.2.b Eastern I.A.2.b.1 Mano, Dan (Gio), Guro (Kweni), Mwa, Nwa, Beng, Gban, Tura (Wen), Yaure I.A.2.b.2 Samo, Bisa, Busa, Kyenga, Shanga I.A.3 Voltaic I.A.3.a Senoufo: Minianka, Tagba, Foro, Tagwana (Takponin), Dyimini, Nafana I.A.3.b. Lobi-Dogon: Lobi, Dyan, Puguli, Gan, Gouin, Turuka, Doghosie, Doghosie-Fing, Kyan, Tara, Bwamu, Wara, Natioro, Dogon, Kulango I.A.3.c Grusi: Awuna, Kasena, Nunuma, Lyele, Tamprusi, Kanjaga (Bulea) (moved to group d), Degha, Siti, Kurumba (Fulse), Sisala I.A.3.d Mossi, Dagomba, Kusasi, Nankanse, Talensi, Mamprusi, Wala, Dagari, Birifo, Namnam, Kanjaga (Bulea) (moved from group c) I.A.3.e Tem, Kabre, Delo, Chala I.A.3.f Bargu (Bariba) I.A.3.g Gurma, Tobote (Basari), Kasele (Chamba), Moba I.A.3.x Dogon I.A.4 Kwa I.A.4.a Kru: Bete, Bakwe, Grebo, Bassa, De, Kru (Krawi) I.A.4.b Avatime, Nyangbo, Tafi, Logba, Likpe, Ahlo, Akposo, Lefana, Bowili, Akpafu, Santrokofi, Adele, Kebu, Anyimere, Ewe, Aladian,