[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Family Trochidae Rafinesque, 1815 - top snails
         01 Genus Trochus Linnaeus, 1758
         02 Genus Clanculus Montfort, 1810
         03 Genus Clelandella Winckworth, 1932
         04 Genus Jujubinus Monterosato, 1884
         05 Genus Gibbula Risso, 1826
         06 Genus Phorcus Risso, 1826
         07 Genus Osilinus Philippi, 1847
         08 Genus Calliostoma Swainson, 1840
         09 Genus Danilia Brusina, 1865
         10 Genus Turcicula Dall, 1881
         11 Genus Calliotropis Seguenza, 1903
         12 Genus Putzeysia Sulliotti, 1889
         13 Genus Margarites Gray, 1847
         14 Genus Solariella Wood, 1842
         15 Genus Callumbonella Thiele, 1924
         16 Genus Minolia Adams, 1860