Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Cheliceriformes Class Chelicerata Heymons, 1901 Subclass Arachnida Lamarck see Class Arachnida Lamarck, 1801 Order Opiliones Sundevall, 1833 - harvestmen Genus Caddo Banks, 1892