[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 Montacutidae Clark, 1855
 see Family Lasaeidae Gray, 1842
        
 1 Genus Montacuta Turton, 1822
        
 2 Genus Axinodon Verrill & Bush, 1898
        
 3 Genus Kelliopsis Verrill & Bush, 1898
        
 4 Genus Mysella Angas, 1877
        
 5 Genus Devonia Winckworth, 1930
        
 6 Genus Epilepton Dall, 1899