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 Gnathifera Ahlrichs, 1995
                                             Phylum Syndermata Ahlrichs, 1995
                                               Hemirotifera
                                                 Class Bdelloidea Hudson, 1884
                                                   Order Bdelloida
                                                     Family Philodinidae
                                                       Genus Macrotrachela Milne, 1886
                                                         Macrotrachela aculeata Milne, 1886
                                                         Macrotrachela angusta (Bryce, 1894)
                                                         Macrotrachela asperula (Murray, 1911)
                                                         Macrotrachela bilfingeri (Bryce, 1913)
                                                         Macrotrachela bullata (Murray, 1906)
                                                         Macrotrachela concinna (Bryce, 1912)
                                                         Macrotrachela crucicornis (Murray, 1905)
                                                         Macrotrachela decora (Bryce, 1912)
                                                         Macrotrachela ehrenbergi (Janson, 1893)
                                                         Macrotrachela fungicola Garner
                                                         Macrotrachela habita (Bryce, 1894)
                                                         Macrotrachela insulana Donner 1962
                                                         Macrotrachela multispinosa Thompson, 1892
                                                         Macrotrachela muricata (Murray, 1905)
                                                         Macrotrachela musculosa Milne, 1886
                                                         Macrotrachela nana (Bryce, 1912)
                                                         Macrotrachela natans (Murray, 1908)
                                                         Macrotrachela ornata Donner
                                                         Macrotrachela papillosa Thompson, 1892
                                                         Macrotrachela plicata (Bryce, 1892)
                                                         Macrotrachela quadricornifera Milne, 1886
                                                         Macrotrachela vesicularis (Murray, 1906)