Very cool theory Bev! That just might explain it! Why else would a North American Spanish horse group be closely related to horses that are not even in the same are? You would think that the Sulphurs would relate closely to those found in the south west, but instead, they have South American genetics!
A sneaky way to get South American genes into North American Spanish horses when you think about it! lol
Does anyone know who the Cerbat horses closely relate to?