Koyukon ( Ten’a, Co-Youkon, Co-yukon)::* Lower Koyukon ( Lower Yukon Koyukon)::* Central Koyukon ( Dinaakkanaaga Ts’inh Huyoza, Koyukuk River Koyukon)::* Upper Koyukon ( Upper Yukon Koyukon)B. Tanana–Tutchone: 6.
Коюкон::* Lower Koyukon ( Lower Yukon Koyukon)::* Central Koyukon ( Dinaakkanaaga Ts’inh Huyoza, Koyukuk River Koyukon)::* Upper Koyukon ( Upper Yukon Koyukon)B. Tanana-Tutchone: 6.