[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 Yoldiidae Dall, 1908
         1 Genus Yoldia Møller, 1842
         2 Genus Yoldiella Verrill & Bush, 1897
         3 Genus Megayoldia Verrill & Bush, 1897
         4 Genus Portlandia Mörch, 1857
         5 Genus Microgloma Sanders & Allen, 1973