Is your possum the size of a small cat with big and slightly pointy ears, clever eyes, a coarser, greyish fur and a blackish tail? Brushtail. Is your possum smaller with mousy ears, sad eyes, a browner and more fluffy fur, and white or possibly bald tipped tail? In that case you have a Ringtail.
I guess Townsville possums are mainly the brushtail kind. I did not recognise the dead guy.
Now practise. Can you correctly identify these possums?
Hints: Sad eyes? Mousy ears? (It's tricky because you can't see his tail..)
Hints: Big like a cat? Black tail? Pointy ears?
Disclaimer: I am not a biologist. I spend most of my time indoors.
(Thanks Lynn.. :)