Arthropoda Siebold, 1848 - arthropods
   [Euarthropoda]
     Class Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
       Labrophora Siveter, Waloszek & Williams
         Order †Phosphatocopida Müller, 1964
           †Euphosphatocopida
             Suborder †Hesslandonina Müller, 1982
               Family †Hesslandonidae Müller, 1964
                 Genus †Hesslandona Müller, 1964
                   †Dorsospinata Maas, Waloszek & Müller, 2003
                     1 †Hesslandona suecica Maas, Waloszek & Müller, 2003
                     2.1 †Hesslandona kinnekullensis Müller, 1964
                     2.2.1 †Hesslandona toreborgensis Maas, Waloszek & Müller, 2003
                     2.2.2.1 †Hesslandona necopina Müller, 1964
                     2.2.2.2.1 †Hesslandona curvispina Maas, Waloszek & Müller, 2003
                     2.2.2.2.2 †Hesslandona longispinosa (Kozur, 1974)
                     2.2.2.2.3 †Hesslandona trituberculata (Lochman & Hu, 1960) Rushton, 1978
                     2.2.2.2.4 †Hesslandona ventrospinata Gründel, in Gründel & Buchholz, 1981