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brachiopod, fin, or wing?


wildchild33

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This doesn't look like most shells I see, kinda looks bony. Not sure if the imprint on top is part of it. Kidding about it being a wing but the shape was perfect!  North texas Eagle Ford creek. And for those who will suggest I put it on solid surface in bright light and back up I have included that image.

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Pictures are very blurry. But I would tend to agree with Scylla on this.

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image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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I think that since it was found in a Cretaceous aged area, that would rule out spiriferid brachiopod. 

 

 

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I have a huge collection of Cretateous oysters and nothing even remotely resembles that..? Also wanted to add that the reason I didn't think it was a brachiopod is because the ridges that form the furrows are smooth, so smooth they shine in light. Every other one I see has bumpy irregular ridges. Has that worn away and now you can see the nacre? 

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Lorraine, in your first photo, I can see the wood grain in the floor is in focus.  That is how far away you need to set your fossil to take your photos.  Even at that distance, the focus will be better and reveal more detail.  Then, you could crop the photo after that to remove unneeded background.  Thank you for trying on the photos.  ;) 

 

Is this a broken specimen?

The human mind has the ability to believe anything is true.  -  JJ

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I think John is on the right track suggesting it's a broken piece of something. It also may have some matrix still attached. I could be part of some kind of scallop.

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Hard to tell if it's broken, I had duh moment & remembered my bivalves, hope these are clear enough, the 'wing' in middle & looks to be a match to one on the top which is also the third image.

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