Sireniki Yupik 1997

Sireniki, Chukotka Autonomous Okrug, Russia Sireniki Yupik was previously spoken in the Sireniki village on the Chukot Peninsula. In the 1950s, the indigenous population switched to conversing in Central Siberian Yupik and Russian. The last speaker died in 1997. Morobe Province, Papua New Guinea

Aribwatsa, a member of the Busu subgroup of Lower Markham languages, was spoken in the area of Lae, Morobe Province. The last known speaker, a woman named Butoawê, died in 1997.