Grooming Claw Scan (IMAGE)
Caption
These images created from CT scans show side and top views of a bone that supported a grooming claw, left, and a nail, right. Researchers attribute these fossils to Teilhardina brandti, one of the earliest primates, based on their size and similarity to existing primates. The fossils were found in Bighorn Basin, Wyoming, which was home to this ancient primate 56 million years ago.
Credit
Image by Boyer et al. in the <i>Journal of Human Evolution</i>
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