Crustacea Brünnich, 1772 see [unranked] Crustaceomorpha Chernyshev, 1960
   Labrophora Siveter, Waloszek & Williams
     †Phosphatocopina Müller, 1964 see Order Phosphatocopida Müller, 1964
       †Euphosphatocopina Maas, Waloszek & Müller, 2003 see [unranked] Euphosphatocopida
         †Hesslandonina Müller, 1964 see Suborder Hesslandonina Müller, 1982
           Family †Hesslandonidae Müller, 1964
             Genus †Hesslandona Müller, 1964
               †Dorsospinata Maas, Waloszek & Müller, 2003
                 1.1 †Hesslandona kinnekullensis Müller, 1964
                 1.2.1 †Hesslandona toreborgensis Maas, Waloszek & Müller, 2003
                 1.2.2 †Hesslandona angustata Maas, Waloszek & Müller, 2003
                 1.2.3 †Hesslandona suecica Maas, Waloszek & Müller, 2003
                 2.1 †Hesslandona ventrospinata Gründel, in Gründel & Buchholz, 1981
                 2.2.1 †Hesslandona trituberculata (Lochman & Hu, 1960) Rushton, 1978
                 2.2.2.1 †Hesslandona necopina Müller, 1964
                 2.2.2.2 †Hesslandona curvispina Maas, Waloszek & Müller, 2003