Definitely NOT a canine.I think some of those may be bred to domestic dog as well. Seen a couple over the years that look like they may go 80 pounds or so based on what 80 to 100 pound dogs look like. Still lots of the skinny critters too, but larger are probably better survivors.
Look at the coyote skull picture. All canines have the ridge (sagittal crest) that runs down the back of their skull.