Want to play backyard CSI?

Trying to figure out who made these bit marks that appeared on a butternut squash overnight. I don't think it's possum or rat, based on this page. Maybe raccoon (skull here) and it says they have 6 little teeth between their canines here, which seems to match this (look for dentition description under skull photo)... What do you think?
We've seen possums, crows, and lizards. Never seen raccoons, but they could certainly be here. Maybe bunnicula?