[Arthropoda] Siebold, 1848 - arthropods see Phylum Arthropoda Siebold, 1848
   †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997
     1 Genus †Burgessia Walcott, 1912
     2.1.1 Genus †Kwanyinaspis Zhang & Shu, 2005
     2.1.2.1 Genus †Xandarella Hou et al., 1991
     2.1.2.2.1 Genus †Cindarella Chen et al., 1996
     2.1.2.2.2.1 Genus †Naraoia Walcott, 1912
     2.1.2.2.2.2 Genus †Tegopelte Simonetta & Delle Cave, 1975
     2.2.1.1 Genus †Retifacies Hou, Chen & Lu, 1989
     2.2.1.2.1 Genus †Kodymirus Chlupac & Havlicek, 1965
     2.2.1.2.2.1 Genus †Sidneyia Walcott, 1911
     2.2.1.2.2.2 Genus †Emeraldella Walcott, 1912
     2.2.2.1.1 Genus †Kuamaia Hou, 1987
     2.2.2.1.2.1 Genus †Arthroaspis Stein, Budd, Peel & Harper, 2013
     2.2.2.1.2.2 Genus †Emucaris Paterson et al., 2010
     2.2.2.2.1 †Agnostina Salter, 1864
     2.2.2.2.2 †Trilobita Walch, 1771 - trilobites see Class Trilobita Walch, 1771