[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 Capulidae Fleming, 1822 - cap snails
         Genus Trichotropis Broderip & Sowerby, 1829
           Trichotropis bicarinatus (G.B. Sowerby I, 1825)
           Trichotropis borealis Broderip & G.B. Sowerby I, 1829 - boreal hairysnail