R in On the morphology of the astragalus and calcaneus of the amphicyonids (Carnivora, Mammalia) from the Paleogene of Europe: implications for the ecology of the European bear-dogs

R, lateral view; S, distal view; T, proximal view. Abbreviations: ef, ectal facet; f, foramen; ff, fibular facet; h, head; ll, lateral lip; lp, lateral process; ml, medial lip; n, neck; ppt, proximal plantar tuberosity; ptg, plantar tendon groove; sf, sustentacular facet; sit, sinus of the tarsus; tr, trochlea. Scale bar: 1 cm.