[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 Calyptraeidae Lamarck, 1809 - slipper snails and shelf limpets
         1 Genus Calyptraea Lamarck, 1799
         2 Genus Crepidula Lamarck, 1799