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Upper Carboniferous Crustacean, Fin, Claw, Tail?


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Hi Everyone,

 

I've been working through quite a bit of shale from the Stark member and have a specimen I would like your thoughts on. My brain sees a crustacean claw due to the shape, but I think its more likely that it's a fin. What do ya'll think I have here?

Dimensions are 1 cm by 1 cm.

1.thumb.jpg.39660cd124863f04124af400bc714856.jpg

 

My "holding the phone camera to my microscope lens" method isn't working so well, so here's a rough outline of the shape:

2.thumb.jpg.398c9f0c0fe15c42bf5b2baa83379456.jpg

And the counterpart from the split

3.thumb.jpg.19cb233160e000047688d7bb56a1166a.jpg

 

Thanks,

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Fossildude19

My first impression on this is a part of a skull, maxilla and lower jaw. 

 

1.thumb.jpg-horz.jpg

 

3.thumb.jpg.19cb233160e000047688d7bb56a1166a.jpg

 

 

 

 

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I wonder if the bone would fluoresce under a UV (i.e. "black") light?  If so that would make it easier to distinguish.

 

Don

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@Fossildude19That's an interesting thought. I need to make a habit out of rotating my finds while studying them. Believe it or not I don't think I rotated it even once :DOH: Thanks for your input!

 

@FossilDAWGGood idea Don! I'll give it a try, thank you.

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