[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: -
   [metazoans] Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
  Count: -
     Phylum Arthropoda Siebold, 1848 - arthropods
    Count: -
       Class †Trilobita Walch, 1771 - trilobites
      Count: -
         Order †Ptychopariida Swinnerton, 1915
        Count: †12g
           Genus †Oncchocephalus
          Count: -