fossil marine animal genera Linnaeus, 1758 - animals
   Phylum Echinodermata Bruguière, 1789 - echinoderms
     Asterozoa
       Class Ophiuroidea Gray, 1840 - brittle stars and basket stars
         1 Order †Stenurida
         2 Order Oegophiurida Matsumoto, 1915
         3 Order Phrynophiurida Matsumoto, 1915
         4 Order Ophiurida Müller & Troschel, 1840 sensu O'Hara et al., 2017 sensu O'Hara & al. , 2017
         5 Order †uncertain