Hi Does anyone know how big a domestic dog skull can get?. How big was the largest skull ever found? I am also Interested in the respective breed. I am asking because I just got a great dane skull for a study that measures 31 cms (12/4/10") Long and 16 cms (6/4/10") wide whicht seems to be huge to me. I am still looking at that skull in disbelief as it even dwarfs a large alsatian dog skull and a black bear.