found: Shumaker, R.W. Primates in question, the Smithsonian answer book, 2003:p. 14 (Platyrrhines -- the New World monkeys; includes families Cebidae, Nyctipithecidae, Pitheciidae, and Atelidae)
found: Groves, C. Primate taxonomy, 2001:p. 58 (Platyrrhines) p. 61 (Platyrrhini includes families Cebidae, Aotidae, Pitheciidae, and Atelidae)
found: Wikipedia, Feb. 6, 2006(New World monkeys or Platyrrhines are the four families of primates that are found in Central and South America, the Cebidae, Aotidae, Pitheciidae, and Atelidae. Platyrrhini)
found: Google search, Mar. 1, 2006(platyrrhine monkeys)
