Phylum Euarthropoda Lankester, 1904 see [unranked] Euarthropoda Subphylum †Artiopoda Hou & Bergström, 1997 Superclass †Trilobitomorpha Størmer, 1944 Class †Nektaspida Raymond, 1920 Family †Emucarididae Paterson et al., 2010 1 Genus †Kangacaris Paterson et al., 2010 2 Genus †Emucaris Paterson et al., 2010