The Calcanea of Members of the Hyaenidae
The calcanea of all currently recognized species of living members of the Hyaenidae were examined. These are the calcanea of Crocuta crocuta (15 specimens), Hyaena brunnea (2 specimens, 1 malformed), H. hyaena (5 specimens), and Proteles cristatus (4 specimens). All calcanea of hyaenas have the same articular surfaces: posterior (PAS), medial (MAS), anterior (AAS), and cuboid (CAS) (Fig. 1); the proximal end of the medial articular surface folds over the proximal end of the sustentaculum astragali (SA); and the outline of the outer surface lacks a distinct trochlear process (TP) and tends to dip inward near the cuboid facet (Fig. 1). See Stains (1959, 1962, 1973) or Robinette and Stains (1970) for terminology.
Stains, Howard J.
"The Calcanea of Members of the Hyaenidae,"
Bulletin of the Southern California Academy of Sciences:
Available at: http://scholar.oxy.edu/scas/vol78/iss2/9