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64D40FDD-B261-4A0D-B8CB-7654ECB3A62B.jpeg

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Shellseeker
1 hour ago, garyc said:

I found this recently on the Brazos River in southeast Texas. It has me stumped. Any ideas?

I have seen similar... a circular hole in red,  a channel in blue...

Bone1_colors.JPG.17906acb8819decc46ae210002f41d92.JPG

 

A hole in the sidewall,

IMG_8024.thumb.JPEG.a71759a3c7127b5db0e9fb3be00cbca4.JPEG

 

A channel on top.....

IMG_8025.thumb.JPEG.e6882a58570e5ccea11ac9edf0c7da27.JPEG

 

I think it is part of a mandible....

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Thanks, Jack! If you look at my first pic on the left and my 3rd pic on the right, you can see there’s a circular impression, like a socket.... but not very deep. I’m trying to make this piece be part of a tortoise, but I can’t find any comparable pictures on line showing how limb bones articulate with the rest of the tortoise skeleton @Shellseeker

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Lorne Ledger

hmmm, I think it is mammal - it almost looks like part of a giant sloth scapulae with the acromion ridge worn off.  That is just a guess, but it would have to be from a pretty big animal I would think.

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fossilus

Going off Shellseekers mandible idea, could it be a part of a proboscidean jaw?

Inkedmastodon lower jaws_LI.jpg

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