darrow Posted July 30, 2021 Share Posted July 30, 2021 Previously identified as an Equus tibia. I originally assumed the articular surfaces had been eroded away by the river however I recently compared this to other Equus tibias I’ve collected from the same river and they do not exhibit this pattern of erosion. In fact, the articular surfaces of the other specimens are very much intact showing little more than a polish from the river. Looking at the texture of the exposed cancellous bone at the ends of this tibia and comparing it to that of isolated epiphyseal plates I have collected I’m thinking this tibia is from a juvenile. The articular surfaces are missing because the growth plates were not yet fused. Thoughts? 1 Link to comment Share on other sites More sharing options...
Harry Pristis Posted July 30, 2021 Share Posted July 30, 2021 I think that is a fair assumption for a diaphysis missing the epiphyses. For comparison: 2 1 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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