Is this a fossil if so what did came out of?

[nick.foltz]

I found this while panning for gold. One appears to be a tooth maybe. Its definitely not a rock because it doesn't weigh in like one. The other I'm sure if a fossil its looks like a fish fin. I'm not sure if its a good picture or not. Please help me find out what that is!!

 

[Harry Pristis]

Did you collect these things in Indiana?

 

[nick.foltz]

Yes I did. I found some more. I think they are just the "plant/coral" things. I found more rocks with either shell or fish fin imprints in them. I have tried to do research on common fossils in indiana, but I can't find anything.