Placoderm toothplate

Can i send you a photo of a new albany shale nodule which appears to be the left end of the above fossil can you help me with references to id this piece. Packy

This is Mississippian at the devonian line, new albany shale, it appears to be the inside of the fossil, but looks like it could be the partial o your placodern bone

2 hours ago, Packy said:

This is Mississippian at the devonian line, new albany shale, ...

I would post this up under Fossil ID, and tag jdp and RCFossils.

7 hours ago, Packy said:

This is Mississippian at the devonian line, new albany shale, it appears to be the inside of the fossil, but looks like it could be the partial o your placodern bone

That's an interesting object, but I don't think it could be a Ptyctodontid, the pattern isn't quite the same and they were extinct by the Mississippian, I think I've seen similar patterns on fossil cartilage from fishes, but I am not an expert. As suggested by Fossildude19 it may be best to post it under FossilID