Need some help with a couple of things, Peace River Florida

[Gatordreams]

About a months worth of finds that I just finally need to ask for some help. Any ideas are helpful! Also if anyone would like me to take an individual video of all the angles of anything, I would be more than happy to. 
 

side note, #7 is a vertebra but I would like some help or tips on how to identify the difference between fish vertebrae and snake vertebrae. I love reptiles and I want to make a little collection of the snake vertebrae I find. I’m just not sure how to tell the difference right away

 

[GeschWhat]

#2 is a Glyptodont osteoderm.

[FossilizedJello]

Looks like # 4,10,11,12 are possible horse teeth but I do know the sloth teeth do look similiar. So check out some pics to tell the difference.

#5 possible bison tooth

#18 looks like a fish tooth, I think (see pics) or possible inside of bone

#17 may be an enchodus tooth

#9 and 1 look like shark teeth but a closer look would be needed

Alot of others look like shells of turtles and previous mentions of glyptodont

Then you might have some fossil coral like 23

13 might be a vertebrate plate

Just some help, none of these I am certain about. Looking up some id sheets of maryland would possibly help aswell.

[thelivingdead531]

3 and 4 might be manatee teeth. I’m not certain on that, and often wrong, so don’t take my word for it lol. Closer and more detailed photos of everything would help.