Order Opiliones Sundevall, 1833 - harvestmen Suborder Laniatores Thorell, 1876 - armored harvestmen Infraorder Grassatores Kury, 2002 Superfamily Gonyleptoidea Sundevall, 1833 Family Gerdesiidae Bragagnolo, Hara & Pinto-da-Rocha, 2015 1 Genus Gerdesiusᵀ Roewer, 1952