| Opiliones (Order) |
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| Opiliones Laniatores Thorell, 1876 (Suborder) |
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| Opiliones Laniatores Grassatores Kury in Giribet, Edgecombe, Wheeler & Babbitt, 2002 (Infraorder) |
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| Opiliones Laniatores Grassatores Gonyleptoidea Sundevall, 1833 (Superfamily) |
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| Stygnidae Simon, 1879a (Family) |
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| Stygnidae subfam. Heterostygninae Roewer, 1913 (Subfamily) |
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| Eutimesius Roewer, 1913 (Genus) |
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| Innoxius Pinto da Rocha, 1997a (Genus) |
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| Minax Pinto da Rocha, 1997a (Genus) |
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| Stenostygnellus Roewer, 1913 (Genus) |
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| Stygnidius Simon, 1879a (Genus) |
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| Stygnoplus Simon, 1879a (Genus) |
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| Timesius Simon, 1879a (Genus) |
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| Yapacana Pinto da Rocha, 1997a (Genus) |
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| Stygnidae subfam. Incertaesedis (Subfamily) |
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| Gaibulus Roewer, 1943 (Genus) |
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| Stygnidae subfam. Nomoclastinae Roewer, 1943 (Subfamily) |
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| Nomoclastes Sørensen, 1932 (Genus) |
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| Stygnidae subfam. Stygninae Simon, 1879a (Subfamily) |
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| Actinostygnoides C.J.Goodnight & M.L.Goodnight, 1942c (Genus) |
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| Auranus Mello-Leitão, 1941c (Genus) |
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| Iguarassua Roewer, 1943 (Genus) |
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| Kaapora Pinto da Rocha, 1997a (Genus) |
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| Metaphareus Roewer, 1912c (Genus) |
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| Niceforoiellus Mello-Leitão, 1941b (Genus) |
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| Ortonia Wood, 1869 (Genus) |
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| Paraphareus C.J.Goodnight & M.L.Goodnight, 1943c (Genus) |
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| Phareus Simon, 1879a (Genus) |
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| Pickeliana Mello-Leitão, 1932 (Genus) |
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| Planophareus C.J.Goodnight & M.L.Goodnight, 1943c (Genus) |
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| Protimesius Roewer, 1913 (Genus) |
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| Sickesia H. E. M. Soares, 1979c (Genus) |
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| Stenophareus C.J.Goodnight & M.L.Goodnight, 1943c (Genus) |
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| Stenostygnoides Roewer, 1913 (Genus) |
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| Stygnus Perty, 1833 (Genus) |
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| Verrucastygnus Pinto da Rocha, 1997a (Genus) |
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SysTax - Browse Taxonomy (beta)