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