Clay People" or "Lime People") or Gros Ventre (Atsina) consolidated into the Arapaho. Only the Arapaho and Gros Ventre (Atsina) identified as separate tribal nations.

While living on the Great Plains, the Hinono'eino (all Arapaho bands south of the Haa'ninin) divided historically into two geopolitical social divisions:
* Northern Arapaho or Nank'haanseine'nan ("Sagebrush People"), Nookhose'iinenno ("White