Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Callithricidae - marmosets and tamarins see Family Callitrichidae Gray, 1821 1 Genus Callithrix Erxleben, 1777 - marmosets 2 Genus Cebuella Gray, 1866 - pygmy marmoset 3 Genus Saguinus Hoffmannsegg, 1807 - tamarins 4 Genus Leontopithecus Lesson, 1840 - golden tamarins 5 Genus Callimico Miranda-Ribeiro, 1912 - Goeldi's marmoset