living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
           Class Trematoda Rudolphi, 1808 - flukes see Infraclass Trematoda Rudolphi, 1808
             Subclass Digenea Carus, 1863
               Order Plagiorchiida La Rue, 1957
                 Suborder Allocreadiata
                   Superfamily Lepocreadioidea Odhner, 1905
                     Family Deropristiidae H.R. Mehra, 1962
                       Genus Cestrahelmins Fischthal, 1957
                       Genus Deropristis Odhner, 1902
                       Genus Pristicola Cable, 1952
                       Genus Skrjabinopsolus Ivanov & Murygin, 1937