Bone Identification - Tumblr Posts

Does anyone know what bone this is? I think it's from an nz fur seal because my father found the carcass of one near where I found it a little while ago and there are no other animals of the same size in the area but I have no clue what part of the body it might be

I'd say kangaroo due to the upper jaw's shape but I'm not sure, I'm not from Australia too hahah I just really like marsupials 😔 Also cool skull for real! :3

Reblogging in any case someone might know this, please help this fella out!!

I'm not sure what animal this skull/jaw bone belonged to, but it sure is small and the teeth are very pointy!

Seems to be nurse shark but Im not sure

Also wa so pretty omg

Anyone know what type of shark these are from? Tiny conical teeth.

To the people of Tumblr obsessed with bones (not that kind get your head out of the gutter) what animal do you think this comes from? because I have no idea.