When I wrote about old tazis in Asia recently one commenter sneered and asked if I thought Chinese “sheepheads” were ancient too, meaning the roman- nosed tazis of northwestern China (colloquially, “thin dogs”). I replied with this image from Prince Xanghui’s 8th Century tomb.
Here is a recent photo of a similar hound, a male “xigou”.
The nose is unusual, and not universal even there- perhaps what geneticists call a “founder effect” where its original presence in a small population dominates. More Chinese dogs here.
And see this 2007 post for more wonderful images going back to 450 AD. Tazis are Asian.