A kin group that includes all people in a society who descended, or are believed to have descended, from the same ancestor(s) is called a descent group.
Any social group whose membership is contingent on actual or assumed lineage from a common ancestor, such as a clan, phratry, or sept. Bilateral descent or unilateral descent (as in a patriarchy or matriarchy) may be used to describe the group. could refer to kinship network.
Descent group function: what is it?
These encompass the core functions of the political, religious, and economic spheres. Generally speaking, the kinship unit functions as a corporate group that acquires legal status as a separate legal being and is given collective rights on behalf of its members and their estates.
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