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 Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
                                           Panarthropoda Nielsen, 1995 - panarthropods
                                             Tactopoda Budd, 2001
                                               Phylum Arthropoda Siebold, 1848 - arthropods
                                                 Euarthropoda
                                                   Antennulata
                                                     Subphylum Mandibulata Snodgrass, 1938
                                                       Infraphylum Pancrustacea Zrzavý & Štys, 1997
                                                         Altocrustacea
                                                           Miracrustacea
                                                             Superclass Hexapoda Latreille, 1825
                                                               Cercophora
                                                                 Class Insecta Linnaeus, 1758 - insects
                                                                   Subclass Dicondylia Haeckel, 1866
                                                                     Infraclass Pterygota Lang, 1888
                                                                       Division Ephemeroptera Hyatt & Arms, 1890
                                                                         Order Ephemeropteraᵀ Hyatt & Arms, 1891 - mayflies
                                                                           Suborder Furcatergalia Kluge, 1998
                                                                             Infraorder Pannota McCafferty & Edmunds, 1979 - pannote mayflies
                                                                               Superfamily Ephemerelloidea Klapalek, 1909
                                                                                 Family Ephemerellidaeᵀ Klapálek, 1909
                                                                                   Subfamily Ephemerellinaeᵀ Klapálek, 1909
                                                                                     Tribe Ephemerelliniᵀ Klapálek, 1909
                                                                                       Supergenus Timpanogae (Needham, 1927) Allen, 1984
                                                                                         Genus Attenella (Edmunds, 1971)
                                                                                           1 Attenella attenuata (McDunnough, 1925)
                                                                                           2 Attenella delantala (Mayo, 1952)
                                                                                           3 Attenella margarita (Needham, 1927)
                                                                                           4 Attenella soquele (Day, 1954)