Order Opiliones Sundevall, 1833 - harvestmen Suborder Laniatores Thorell, 1876 - armored harvestmen Infraorder Grassatores Kury, 2002 Superfamily Assamioidea Sørensen, 1884 Family Trionyxellidae Roewer, 1912 Subfamily Opcochininae Roewer, 1935 1 Genus Opcochinaᵀ Roewer, 1927