two groups: 1. The fully nomadic included the Blackfoot , Arapaho , Assiniboine , Cheyenne , Comanche , Crow , Gros Ventre , Kiowa , Lakota , Lipan ,  Kiowa Apache , Plains Cree , Plains Ojibwe , Sarsi , Shoshone , Stoney , and Tonkawa . 2. The semi-sedentary tribes