Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Callithricidae - marmosets and tamarins see Family Callitrichidae Gray, 1821 Genus Leontopithecus Lesson, 1840 - golden tamarins Leontopithecus rosalia (C. Linnaeus, 1766) - golden lion tamarin