Eric Walker added Popa langur to Trachypithecus, and added Trachypithecus to Cercopithecidae

Eric Walker added Trachypithecus to Cercopithecidae, and added Cercopithecidae to Simiiformes

Eric Walker added Catarrhini and Cercopithecidae and US authorities search for missing monkeys after truck carrying 100 primates crashes in Pennsylvania - ABC News to Simiiformes, and added Simiiformes to Haplorhini