Opisthokonta Cavalier-Smith 1987, nom. cl. inval. see Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020]
   1 Fungi L. (1753) see Kingdom Fungi R.T.Moore (1980)
   2.1 Choanoflagellata see Phylum Choanoflagellata Kent, 1880
   2.2 Mesomycetozoa Herr, Ajello, Taylor, Arseculeratne & Mendoza, 1999 see Subphylum Mesomycetozoa Herr, Ajello, Taylor, Arseculeratne & Mendoza, 1999
   2.3 Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758