Very strange Permian tooth... synapsid?

[ThePhysicist]

Hi y'all, I found this strange micro Permian tooth. I haven't seen anything like it. It's from Waurika, OK (Wellington Fm.?, Early Permian), has textured enamel, has a broad crown but is VERY thin/compressed, and shows slight crenelations/serrations? on the edges. It's about 2 mm in height.

 

It's not a fish tooth or scale (otherwise there'd be enameloid on only one side were it a scale), not Orthacanthid "shark" (textured enamel, broad, compressed crown), not amphibian (not conical or labyrinthodont), which leaves reptile or synapsid. Any help to narrow it down further would be very much appreciated. @jdp@dinodigger

 

Side profile:

Basal view:

[JamieLynn]

following to see what the experts say. 

[jdp]

Are you sure this is a tooth and not a flake of bone?

[ThePhysicist]

1 hour ago, jdp said:

Are you sure this is a tooth and not a flake of bone?

I'm fairly confident. There appears to be a shiny enameloid layer that coats all unbroken surfaces. I highly doubt that the shine is due to weathering as it doesn't match the preservation of the other bones in the same matrix, and given the otherwise sharp unbroken features. 

 

If it helps I can show it side-by-side with other bones. If you also need another view, say the word.

 

Chipped "enamel" at the "apex":

Broken base of the tooth showing a darker outer layer (presumably enamel):

Sharp edges - not broken.