I mean the traditional cultural cores and belief systems of those groups indigenous to the continent.

For example:
Yoruba
Akan
Mbundu
Ewe
Xhosa
Zulu
Shona
Gikuyu
Vai

are just a few examples of groups that are "traditional Afrikan groups."

As far as diversity I don't deny that, however most of these groups have MUCH in common when it comes to core beliefs when it comes to there particular cultures. This topic has been discussed on these boards before though so I will direct you to posts created by myself and Utamaroho in the archives.

PEace