Small unidentified ossicle from Gainesville creeks

[Coela Cant]

Not sure what exactly I’m looking at here. At first I thought it was a piece of Psephophorus or a tortoise piece but now I’m not so sure. Notice that it has a very distinct ring around the border of the smooth side. Quite flat in both sides.

[Brevicollis]

Please use other measurements than coins 

I dont think its an ossicle. It looks like a piece of a glyptodon shell to me, maybe @Shellseeker knows exactly.

Edited February 25 by Brevicolis

[Harry Pristis]

giant tortoise osteoderm, I think.

[Shellseeker]

Certainly found in Florida,  this is an Osteoderm.  Possibilities include Glyptodon and Giant Armadillo... Some around the tail of the Glyptodon are small and round,  and I have recently found some Armadillo osteoderms of right size and shape..

 

But like Harry,  I get a vibe of Giant Tortoise footpad.