After Parker, 1982, and Shackleton, 2005

<==o Ophiuroidea Gray, 1840 (brittle-stars and basket-stars; käärmetähdet)
   |--o †Eophiuridae Schöndorf, 1910
   |  |-- †Palaeura neglecta Schuchert, 1914; Jaekel, 1903 [Jaeger specify no type species]
   |  `--+-- †Pradesura jacobi (Thoral, 1935) Spencer, 1951
   |     `-- †Eophiura bohemica Schuchert, 1914; Jaekel, 1903 [Jaeger specify no type species]
   `--+--o †Stenasteridae Schuchert, 1914
      |  |-- †Stenaster obtusus (Forbes, 1848) Billings, 1858 [S. salteri Billings, 1858]
      |  `-- †Aulactis orthopeda Spencer, 1940
      `--+--o †EncrinasteridaeSchuchert, 1914
         |  |-- †Mastigactis aranea (Ruedemann, 1916) Spencer, 1930
         |  `--+-- †Euzonosoma orbitoides Spencer, 1930
         |     `--o †Encrinaster Haekel, 1866
         |        |-- †E. arnoldi (Goldfuss, 1848) [Aspidosoma arnoldi Goldfuss, 1848]
         |        `-- †E. grayae (Spencer, 1914)
         `--+--o †Protasteridae Miller, 1889
            |  |--o †Furcaster Stürtz, 1866
            |  |  |-- †F. leptosoma (Salter, 1857) [Protaster leptosoma Salter, 1857]
            |  |  `-- †F. trepidans (Spencer, 1925)
            |  `--+--o †Hypophiura Jaekel, 1923
            |     |  |-- †H. tentatrix Jaekel, 1923
            |     |  `-- †H. grayae Shackleton, 2005
            |     `--+--o †Lapworthura Gregory, 1897
            |        |  `-- †L. miltoni (Salter, 1857)
            |        `--+--o †Protaster Forbes, 1849b
            |           |  |-- †P. sedgwickii Forbes, 1849b
            |           |  `-- †P. groomi (Spencer, 1934)
            |           `--o †Drepanaster Whidborne, 1898
            |              |-- †D. scabrosus (Whidborne, 1896) [Protaster scabrosus Whidborne, 1896]
            |              `-- †D. grayae Spencer, 1934
            `?-o “Recent Ophiuroids”
               |--o Oegophiurida
               |  `-- Ophiocanopidae
               |--o Phrynophiurida
               |  |--o Ophiomyxina
               |  |  `-- Ophiomyxidae
               |  `--o Euryalina
               |     |-- Euryalidae
               |     |-- Gorgonocephalidae
               |     |-- Asteroschematidae
               |     `-- Asteronychidae
               `--o Ophiurida
                  |--o Chilophiurina
                  |  |-- Ophiuridae
                  |  |-- Ophioleucidae
                  |  |-- Ophiocomidae
                  |  |-- Ophionereididae
                  |  `-- Ophiodermatidae
                  |--o Laemophiurina
                  |  |-- Ophiacanthidae
                  |  |-- Hemieuryalidae
                  |  `-- Amphilepididae
                  `--o Gnathophiurina
                     |-- Ophiactidae
                     |-- Amphiuridae
                     `-- Ophiothricidae

Reference(s):