>>1376502Dog skull. You can use clear epoxy to fit the teeth back in. Carnivore teeth almost always fall out like that. Use epoxy on all of them. If you go back to the spot and look very carefully, you may find more or all the teeth. Fox skulls are a bit thinner and the canine teeth are narrower than that.
Here's a raccoon skull I got. I used dental floss to tie the jaw hinge up so it can open and close normally.