Phyllocarid?

[Bear626]

I am new at this. I found possibly both halves of a phyllocarid(?) But not sure.

 

It was found by me.

Devonian. Found in shale outcrop Near Lebannon, NY. July 2022

 

 

Thanks for any info on this.

[Fossildude19]

This definitely looks like something arthropod-ish, but it isn't shaped like a phyllocarid valve. 

They are usually more oval in shape, with growth lines visible on the edges.

 

I wonder if it could be a piece of a larger Dipleura pygidium?

 

Cropped, rotated, and darkened:

 

 

 

@Jeffrey P

[FossilDAWG]

I agree it does not look like a phyllocarid.

 

Don

[Jeffrey P]

Placoderm armor?