Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum †Artiopoda Hou & Bergström, 1997
     Superclass †Vicissicaudata Ortega-Hernández, Legg & Braddy, 2013
       Order †Aglaspidida Walcott, 1911
         1 Genus †Australaglaspis Ortega-Hernández, Braddy, Jago & Baillie, 2010
         2.1 Genus †Beckwithia Resser, 1933
         2.2.1 Family †Tremaglaspididae Lerosey-Aubril, Zhu & Ortega-Hernández, 2017
         2.2.2 Family †Aglaspididae Miller, 1887
         3 ?Genus †Angarocaris Tchernyshev, 1953
         4 ?Genus †Chacharejocaris Tchernyshev, 1945
         5 ?Genus †Girardevia Andreeva, 1957
         6 ?Genus †Obrutschewia Tchernyshev, 1953
         7 ?Genus †Rozhkovocaris Rosov