[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 Trapezidae Lamy, 1920 (1895), orth. cons.
         1 Genus Trapezium Megerle von Mühlfeld, 1811
         2 Genus Coralliophaga Blainville, 1824
         3 Genus Isorropodon Sturany, 1896