Peace River/Bone Valley IDs - possible C. Hastalis?

[Meganeura]

Was digging/sorting through my fossils this morning - had a couple that I hadn’t yet gotten ID’d and wanted to ask about! 
 

So first is this tooth I originally thought was Carcharhinus of some kind, but on a close look it’s got no serrations at all, which is making me wonder if it’s a C. Hastalis? 

 

Second up is… whatever this is. Fish mouth plate of some kind? One side of it the “bubbles” pop out, the other side they’re craters.

 

And finally, what I originally thought was gator tooth, then thought may have been antler, and I’m now back to thinking tooth but not sure what:

 

Thanks in advance!

Edited May 27, 2022 by Meganeura
Title change

[jonnyquest]

Last pic looks like beaver. Wait for others to reply.

[Meganeura]

16 minutes ago, jonnyquest said:

Last pic looks like beaver. Wait for others to reply.

That looks incredibly similar, actually! Thank you!

[Meganeura]

@Shellseeker I know you're often on peace river, so do you have any insight into what the tooth may be?

[fifbrindacier]

See this :

 

 

@Ancient Bones ?

Edited May 27, 2022 by fifbrindacier

[Shellseeker]

I think beaver is most likely.

 

The shark tooth is C hastalis.  Nice finds.

[Meganeura]

10 hours ago, Shellseeker said:

I think beaver is most likely.

 

The shark tooth is C hastalis.  Nice finds.

Thank you for the help!

[SawTooth]

#2 may be gator scute fragment, unless those are pictures of both sides.

[Meganeura]

4 minutes ago, SawTooth said:

#2 may be gator scute fragment, unless those are pictures of both sides.

Pictures 1 and 2 of #2 are the same side, 3 is of the reverse.