Euarthropoda
†Lamellipedia
see Superclass Lamellipedia Hou & Bergström, 1997
†Artiopoda Hou & Bergström, 1997
see Subphylum Artiopoda Hou & Bergström, 1997
Order †Nektaspida Raymond, 1920 - nektaspids
see Class Nektaspida Raymond, 1920
Family †Liwiidae Dzik & Lendzion, 1988
see Subfamily Liwiinae Dzik & Lendzion, 1988
1 Genus †Liwia Dzik & Lendzion, 1988
2.1 Genus †Soomaspis Fortey & Theron, 1995
2.2 Genus †Tariccoia Hammann et al., 1990