One analysis of an English variety of this concept by Marilyn Strathern examines the “liberating informality” of name conventions with elders as an example of this concept’s evolution. In attempting to define this concept in the United States, Talcott Parsons argued that the structural “emancipation” of women results in a higher influence of occupation on this concept. David Schneider challenged the distinction between the (*) real and fictive forms of this concept in a work criticizing its study. The Sudan system of this concept is taken as a paragon case of its “descriptive” form in a work that categorizes this concept into six types. The “alliance theory” of this concept was developed in a Claude Lévi-Strauss book titled for its elementary forms. For 10 points, name this anthropological concept studied in Lewis Henry Morgan’s Systems of Consanguinity (10[1])and Affinity of the Human Family. ■END■ (10[1])