Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Callithricidae - marmosets and tamarins see Family Callitrichidae Gray, 1821 Genus Saguinus Hoffmannsegg, 1807 - tamarins Saguinus fuscicollis (Spix, 1823) - saddle-back tamarin