Hun, Alan, Avar, and other Steppe Nomad Movements

[Flavivs Aetivs]

AFAIK the Yancai and Alanliao were both Alans.

Yes, I am aware the Rover Ob is part of Eastern Mongolia. However: Manechen-Helfen suggests the Altaic Proto-Huns spread there, but they didn't originate there. He seems to suggest they originated in the Amu Darya River Delta of Khwarezm, as semi-sedentary Nomads who along with sheep herding also grew millet (Like the Alans and Sarmatians before and around them.)

I won't deny they had some contact with the Xiongnu: their location and history makes it seem inevitable, but I will say I don't think they WERE Xiongnu.