[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       Xiphosura Latreille, 1802 - horseshoe crabs see Class Xiphosura Latreille, 1802
         Prosomapoda Lamsdell, 2013
           [Class] Xiphosura Latreille, 1802 [monotypic] - horseshoe crabs
             [Order] Xiphosurida Latreille, 1802
               [Suborder] Limulina Richter & Richter, 1929
                 Superfamily Limuloidea Leach, 1819
                   Family †Austrolimulidae Riek, 1955
                     01 Genus †Attenborolimulus Bicknell & Shcherbakov, 2021
                     02 Genus †Austrolimulus Riek, 1955
                     03 Genus †Batracholimulus Lamsdell, 2020
                     04 Genus †Dubbolimulus Pickett, 1984
                     05 Genus †Franconiolimulus Bicknell, Hecker & Heyng, 2021
                     06 Genus †Panduralimulus Allen & Feldmann, 2005
                     07 Genus †Psammolimulus Lange, 1923
                     08 Genus †Shpineviolimulus Bicknell, Naugolnykh & Brougham, 2020
                     09 Genus †Tasmaniolimulus Bicknell, 2019
                     10 Genus †Vaderlimulus Lerner, Lucas & Lockley, 2017