Distribution timeline of New World monkey publications in the last fifty years. The percentage of total publications featuring New World monkeys is shown by year grouped by Family or Family/Subfamily following the taxonomy of Rylands and Mittermeier [62]: Callitrichidae, including marmosets and tamarins; Cebidae/Caimiriinae, including squirrel monkeys; Cebidae/Cebinae, including capuchin monkeys; Aotidae, including owl monkeys; Atelidae/Atelinae, including spider monkeys; Atelidae/Alouattinae, including howler monkeys; Pitheciidae/Pitheciinae, including sakis; and Pitheciidae/Callicebinae, including titi monkeys.