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Distal humerus


garyc

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Does anyone have a clue what this distal humerus came from? I found it in Pleistocene gravel in southeast Texas. From the limited images, I have found online I do not think it is bison. I’m leaning toward horse, but wondering if it could be tapir. I would appreciate any insights.

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The single articulated “groove” or Channeling (hopefully I can’t get an anatomical term hint from the forum) is important. At least I think it might be.  To have multiple toes, multiple grooves? Example being a bison bifurcating into two toes has a groove for each metacarpal /tarsal. 
 

So the owner of your bone can only have one toe , right?  
 

Sorry it’s not an answer but might narrow it down. At worst I’m totally wrong and will learn something. 
 

😊😉

 

Jp
 

 

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