[Ecdysozoa] Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997, nom. cl. inval. - ecdysozoans see Clade Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997 [Lake, Halanych, Servin & Garey 2020]
Count: -
   Superphylum Panarthropoda Nielsen, 1995 see [unranked] Panarthropoda Nielsen, 1995
  Count: -
     Arthropoda Siebold, 1848 - arthropods see Phylum Arthropoda Siebold, 1848
    Count: -
       Phylum Euarthropoda Lankester, 1904 see [unranked] Euarthropoda
      Count: -
         Euchelicerata Weygoldt & Paulus, 1979
        Count: [*†*] 10o;1g; †3o;6g
           Genus †Megalograptus Miller, 1873
          Count: -