Riojavenatrix lacustris, right tibia (CPI 1642), left tibia and astragalus (CPI 1638), and left fibula (CPI 1639A–B) in anterior (A, E, K, P), lateral (B, F, L, Q), posterior (C, G, M, R), medial (D, H, N, S), proximal (I, J, O), and distal (T) views. A–D, I, proximal end of the right tibia. E–H, J, left tibia and astragalus. K–O, shaft and proximal end of the left fibula. P–T, distal end of the left fibula. Abbreviations: asf, astragalar facet; ast, astragalus; cn, cnemial crest; fc, fibular crest; icn, intercondylar notch; ift, iliofibularis tubercle; it, incisura tibialis; lc, lateral condyle; lm, lateral malleolus; mf, medial fossa; mm, medial malleolus; sab, supraastragalar buttress. Scale bars: 10 cm in A–O; 5 cm in P–T.