[Arthropoda] Siebold, 1848 - arthropods
see Phylum Arthropoda Siebold, 1848
Arachnomorpha Heider, 1913
†Trilobitomorpha Størmer, 1944
see Superclass Trilobitomorpha Størmer, 1944
†Petalopleura Hou & Bergström, 1997
see Subclass Petalopleura Hou & Bergström, 1997
†Xandarellida Chen et al., 1996
see Order Xandarellida Chen et al., 1996
Genus †Xandarella Hou et al., 1991