afoster Posted October 21, 2014 Share Posted October 21, 2014 Wish the bone had atleast one end on it, but that would make it too easy. Included a 10 inch ruler for size comparison. The bone is very dense and heavy, I would say partially mineralized. Found in river in NW MO, where pleistocene bones are commonly found. Link to comment Share on other sites More sharing options...
fossilized6s Posted October 21, 2014 Share Posted October 21, 2014 I would guess a Equus or Bos femur. It doesn't look thick enough for Mammoth. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
afoster Posted October 21, 2014 Author Share Posted October 21, 2014 To me it doesn't seem to match up to Bos very well, doesn't seem to have the supracondyloid fossa. And Bos seems more round, as opposed to the twisted and flattened look of my bone. I am not sure about Equus I don't have a good picture or sample to compare to. Anyone else have any ideas? Link to comment Share on other sites More sharing options...
Xiphactinus Posted October 22, 2014 Share Posted October 22, 2014 Looks like a bison tibia to me. Link to comment Share on other sites More sharing options...
jpevahouse Posted October 22, 2014 Share Posted October 22, 2014 Did comparison with bison tibia. The bone appears to be a damaged tibia. Though very close to bison all the examples I found are thinner, not as stocky as the bone you found. Link to comment Share on other sites More sharing options...
afoster Posted October 22, 2014 Author Share Posted October 22, 2014 Did comparison with bison tibia. The bone appears to be a damaged tibia. Though very close to bison all the examples I found are thinner, not as stocky as the bone you found. I found the same thing when I compared to a bison tibia I have. Looks very feasible to be a bison tibia, but the size difference is drastic and like you said the bone I found just seems more stocky. I am by no means an expert, but could it be a bison antiquus? Would they be larger? Link to comment Share on other sites More sharing options...
Xiphactinus Posted October 22, 2014 Share Posted October 22, 2014 Yes, B antiquus, B. occidentalis, and B. latifrons were all in the area and were more robust than B. bison Link to comment Share on other sites More sharing options...
afoster Posted October 22, 2014 Author Share Posted October 22, 2014 Thanks for all the help. With your help I am fairly confident it is a rather large bison tibia. Link to comment Share on other sites More sharing options...
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