Evolution and Allometry of Calcaneal Elongation in Living and Extinct Primates Boyer, Doug M. ; Seiffert, Erik R. ; Gladman, Justin T. ; Bloch, Jonathan I. Abstract Publication: PLoS ONE Pub Date: July 2013 DOI: 10.1371/journal.pone.0067792 Bibcode: 2013PLoSO...867792B