Planko Posted February 20, 2021 Share Posted February 20, 2021 Hey everyone, Been awhile since I posted about identifying anything but I do have a few since I am trapped in the . Finally got most of my stuff sorted. I found this at the NSR in Delta County after the heavy rains a few weeks back. Although there can be bones found from cows fairly frequently this stood out. It was cover in the dark soiled like it was just released. I have only used water and a toothbrush. Hollow center was pretty challenging as the black dirt was tough to remove. I have done the burn test and no hair smell. It is heavier then I would expect it to be. I am thinking Bison. Thoughts and age maybe? Also curious as the break or scrap in pic 7. Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted February 20, 2021 Share Posted February 20, 2021 This appears to be the end of a humerus. From what I can tell I'd guess Bison but more pictures would help. Pictures straight on of the areas of the arrow will help. I want to see the size and shape of the fossa on the lateral condyle and a better view of the lateral epicondyloid crest. Is this area broken? Bos has a little projection on the distal condyle whereas it's more straight in Bison. Link to comment Share on other sites More sharing options...
LordTrilobite Posted February 20, 2021 Share Posted February 20, 2021 Most definitely the end of a humerus. I would lean towards this being older. The way it's weathered and since you say it's fairly heavy makes me think this is at least a subfossil. Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Planko Posted February 20, 2021 Author Share Posted February 20, 2021 Here are the pics you ask for. This is the part that is most damaged so to speak. Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted February 21, 2021 Share Posted February 21, 2021 It's certainly not making it easy. Most of the diagnostic features are worn but I'd say Bison based on the distal condyles. I'd actually lean towards it being more recent than you might think. I've collected a LOT of Bison bones in various stages growing up in North Dakota and wear is not a good indicator of age for bone. Also, the bones tend to be much heavier than one expects even before fossilization so I wouldn't rely on this either unless you've handled a lot of Bison bones. 1 Link to comment Share on other sites More sharing options...
Planko Posted February 21, 2021 Author Share Posted February 21, 2021 Thank you for the information. Link to comment Share on other sites More sharing options...
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