[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Bivalvia Linnaeus, 1758 - bivalves
       Family Petricolidae d'Orbigny, 1840 - rock borers see Subfamily Petricolinae d'Orbigny, 1840
         1 Genus Petricola Lamarck, 1801
         2 Genus Lajonkairia Deshayes, 1854
         3 Genus Mysia Lamarck, 1818