>>Sorry to burst you bubble but that is not an opossums skull. the opossum as 50 teeth in its mouth the most of any land mammal. and the teeth are more jaged then strait. I looked at a few other skulls as a comparison and talked to a naturlist, but can only tell you that that is not an opossum. Sorry again

You know, I still vote for rat, having seen quite a few of their jaw pieces. But I haven't seen other mammals/rodents to make a comparison.