Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         [crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                       Infrakingdom Protostomia Grobben, 1908
                                         Superphylum Spiralia Schleip, 1929
                                           Clade Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
                                             Clade Rouphozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
                                               Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
                                                 Subphylum Rhabditophora Ehlers, 1985
                                                   Class Neoophora
                                                     Subclass Neodermata
                                                       Infraclass Cestoda
                                                         Nephroposticophora
                                                           Cestoidea
                                                             Eucestoda
                                                               Order Onchoproteocephalidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014, sedis mutabilis
                                                                 Family Proteocephalidae La Rue, 1911
                                                                   Subfamily Corallobothriinae Freze, 1965 [non-monophyletic]
                                                                     Genus Megathylacoides Jones, Kerley & Sneed, 1954
                                                                       1 Megathylacoides giganteumᵀ (Essex, 1928)
                                                                       2 Megathylacoides intermedium (Fritts, 1959)
                                                                       3 Megathylacoides lamothei (García-Prieto, 1990)
                                                                       4 Megathylacoides procerum (Sneed, 1950)
                                                                       5 Megathylacoides thompsoni (Sneed, 1950)
                                                                       6 Megathylacoides tva (Jones, Kerley & Sneed, 1956)