Editing Moropus (section)

=== Sexual dimorphism ===
There has been some debate over whether ''Moropus'' was [[Sexual dimorphism|sexually dimorphic]]. The matter was discussed by Olof August Peterson and William Jacob Holland in their monograph, in reference to two different mature size groups that had been noted. The larger one was ''M. elatus'', and the other was, at the time, considered ''M. petersoni''. Larger individuals possessed small sagittal crests, whereas smaller individuals did not (and instead retained independent [[Supraorbital ridge|supraorbital ridges]]), though noted this could be due to sexual dimorphism. They supposed that, if they were females, the smaller specimens would have a larger [[pelvic cavity]] with larger [[Foramen|foramina]] for blood supply, which is not observed. Based on the relative subtetly of these differences, which did not, to them, indicate sexual dimorphism, the smaller morph was decided to probably be separate, and ''Moropus petersoni'' was retained as a taxon.<ref name=":0" /> However, Margery Chalifoux Coombs suggested that there was, in reality, no reason to assume that sexual dimorphism was absent, and opted to sink ''M. petersoni'' into ''M. elatus''. She suggested that "''M. petersoni''", being smaller, may have represented the female of ''M. elatus''. Further, she noted that there were cases of possible sexual dimorphism throughout Chalicotheriidae, and that there would be a strong precedent for it.<ref name=":3" />

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