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Fish scale or something else?


dorkasaurus

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I found what looks to be a large fish scale, but I’m not entirely certain. I would like some help with potentially ID’ing the species. I tried searching online, but nothing I found looked like what I collected.

 

This was collected from the split fish layer of the Green River Formation at American Fossil Quarry in Kemmerer, Wyoming. It is about 1.5cm in length and width.

 

Thanks for any help.

418478C6-5F2F-46DA-9077-796D36FACF3A.jpeg

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I don't think it's a scale.  It appears to be the inside of  something like a bony scute.

Unless it's a mold fossil of a scale ?

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Found the explanation in Lance's book. The "web-like mosaic" is typical of Phareodus scales. 

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