Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Callithricidae - marmosets and tamarins see Family Callitrichidae Gray, 1821 Genus Cebuella Gray, 1866 - pygmy marmoset Cebuella pygmaea (Spix, 1823) - pygmy marmoset see Callithrix pygmaea (Spix, 1823)