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
                     †Hesslandona longispinosa (Kozur, 1974)