(A) Humans have the longest cuboids among living anthropoids. Note that Ar. ramidus has a cuboid that is relatively longer than most taxa, but falls within the range of variation for G. gorilla, Papio, and Theropithecus. (B) Humans have the shortest phalanges among living anthropoids. Note the convergence between terrestrial apes and monkeys. Ar. ramidus falls within the range of variation for G. gorilla, Papio, and Erythrocebus. (C) Hominoids and select anthropoids have relatively long first metatarsals. Note the long MT1 of Alouatta, Lagothrix, Cebus, and the arboreally adapted papionins. Ar. ramidus falls within the ranges of variation for African apes and Alouatta.