(A)–Astragalus and cuboid of Artiocetus clavis (GSP-UM 3458, type, reversed). (B)–Ankle of Maiacetus inuus (GSP-UM 3551). (C)–Ankle of Rodhocetus balochistanensis (GSP-UM 3485, type). Specimens are drawn to approximately the same astragalus+cuboid length, and viewed dorsally. Blue arrow points to distinctive indentation in lateral margin of astragalus of M. inuus; red arrows point to the broad and deep, narrow and intermediate, and narrow and shallow indentations in the calcaneum and lateral margins of cuboids. Abbreviations: Ast., astragalus; Cal., calcaneum; Cub., cuboid; Ecc., ectocuneiform; Enc., entocuneiform; Mec., mesocuneiform; Nav., navicular.