Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Primates Linnaeus, 1758 - primates
       Suborder Haplorrhini Pocock, 1918 see Suborder Haplorhini Pocock, 1918
         Infraorder Simiiformes Haeckel, 1866
           Parvorder Platyrrhini Geoffroy Saint-Hilaire, 1812
             Family Atelidae Gray, 1825
               Subfamily Atelinae Gray, 1825
                 Genus Ateles Geoffroy Saint-Hilaire, 1806 - spider monkeys
                   Ateles fusciceps Gray, 1865[1866] - brown-headed spider monkey
                     1 [Ateles fusciceps fusciceps]ᵀ Gray, 1865[1866]
                     2 Ateles fusciceps rufiventris Sclater, 1872