The extraordinary osteology and functional morphology of the limbs in Palorchestidae, a family of strange extinct marsupial giants
(A) Lateral; (B) proximal views. Hatching indicates surface damage to cortical bone, dashed lines indicate inferred bone contours. Abbreviations: af, articular facet; dp, dorsal process; ft, flexor tubercle; mk, median keel; uc, ungual crest (estimated); up, ungual process. Scale bar 50 mm.