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So when I first dug this up out of the sand, I thought it was probably modern due to the color, and it felt pretty light and a little more brittle than my normal finds.   But there is mostly Pleistocene material here and sometimes it can be hard to tell.  I put a lighter under it and it had no reaction.

 

And when I cleaned it up, I realized that a hole runs through it.  I've read a lot of past posts by @Harry Pristis describing foramen, and I've seen examples in his collections where he discusses the differences between which animals have which types of foramen, but I'm still a little shaky on telling whether this would be an entepicondylar or supracondylar foramen.

 

I thought that foramen for leg bones are only found in the distal humerus, but this bone has a particularly flat end that doesn't seem like a great match for the humerus examples I've looked at so far.  Maybe that's just due to wear.

 

I feel like I'm probably missing something here.

 

Any info would help. Thanks.

 

--Brandy

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No expert  but i am      having a hard time seeing  where the long bone shaft would have broken  off.  I see breaks but because the cortical bone is approaching the breaks so closely the missing piece seems small  and the cortical bone seems thin for the end of a long bone.  ?can it be a vertebrae ?

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@val horn

You're right, I should have probably added pictures showing the proximal and distal ends so people could see the articular surface and the part that's been broken off.

 

@Harry Pristis Thank you for taking a look.

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thank you for the additional photos.  I am still not seeing it as a long bone.  that may just be my lack of imagination, my idea of a vertebrae is also wrong and no longer viable.  Now I am thinking of wrist and ankle bones of something large.  @darrow knows alot about pleistocene fossils any may be able to help.  Of course there is always dr Hulbert at U of florida.

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1 hour ago, val horn said:

thank you for the additional photos.  I am still not seeing it as a long bone.  that may just be my lack of imagination, my idea of a vertebrae is also wrong and no longer viable.  Now I am thinking of wrist and ankle bones of something large.  @darrow knows alot about pleistocene fossils any may be able to help.  Of course there is always dr Hulbert at U of florida.

 

I think the only reason I assumed it was a long bone was because of the significant foramen, which I had only read about happening in distal ends of humeri.  But the flat articular surface didn't really fit with a humerus. I wasn't even sure if there's enough detail here for an ID, but the hole was really interesting to me, so I figured it was worth a shot. It's the only reason I felt this probably wasn't modern.  It was unfamiliar, and most modern large bones here on the river are easier for me to identify now that I've got a little more experience under my belt.  

 

But always possible I'm missing something obvious.

--Brandy

 

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On 10/21/2021 at 8:24 AM, garyc said:

Here’s a bison atlas vert from the river. See if your chunk compares

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Thanks @garyc.

 

I hadn't considered a partial vertebra!

 

I don't think it would work since three out of four sides on this piece are complete and don't look quite right for it, but I may just not be using enough imagination.

 

These photos may show the shape/side a little better.

 

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On 10/18/2021 at 2:17 AM, val horn said:

can it be a vertebrae ?

Yup. I'm in. But as you know I don't have credentials to protect.

Duces and one eyed jacks are wild here. :)

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