Kin Groups and Descent. Although kinship terminology suggests that the Teton earlier were organized into matrilineal clans, once they had migrated onto the plains their descent system gave way to a bilateral form of organization. Somewhat reminiscent of an earlier clan system is the Teton unit called tiyospaye, a named unit into which people are born and within which men and women cannot intermarry. Although age stratification exists among a number of surrounding plains tribes, the Teton do not exhibit such characteristics.
Kinship Terminology. Traditional kinship terminology follows the Iroquoian system.