Help with ID requested

[PODIGGER]

Found the fossil pictured below in the Peace River, FL yesterday.  My first thought on pulling it out of the sifter was osteoderm.  The squareness of the object and bone appearance led me to this idea.  The thickness and overall size is similar to the rosette shaped ones I have found.  Problem is I haven't found any examples of a similar shaped glyptodont osteoderm.  The specimen is too thick to fall into the giant armadillo range. Could it be a partial glyptodont or is it just something else.  Maybe turtle?  Any input/ideas are appreciated.

 

Specimen in inches - 2 1/8" x 2" x 7/8"

 In millimeters - 60mm x 55mm x 25mm

 

 

 

 

 

 

[Fossildude19]

Pictures are quite small, and a bit dark. 

[jikohr]

Hi, nice piece dude! 

These Glyptodonts are kinda similar in proportion.

A little weathering on any of them could produce a more square shape.

Hope this helps!

[PODIGGER]

Thank you both for your input. I’ll see if I can do some editing on the pics to lighten them up and get them a bit bigger.

[PODIGGER]

@Fossildude19  Hopefully these pictures are better.

 

 

 

 

 

 

 

 

 

 

 

[jikohr]

1 hour ago, PODIGGER said:

@Fossildude19  Hopefully these pictures are better.

 

 

 

 

 

 

 

 

 

 

 

The lighting definitely helps, although now I'm leaning toward turtle due to what looks like a suture in the second photo.

[PODIGGER]

Thanks jikohr