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 1 Leontopithecus chrysomelas (Kuhl, 1820) - golden-headed tamarin 2 Leontopithecus chrysopygus (Mikan, 1823) - golden-rumped tamarin 3 Leontopithecus rosalia (C. Linnaeus, 1766) - golden lion tamarin