fossil marine animal genera Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Class †Trilobita Walch, 1771 - trilobites
       01 Order †Naraoiida see Order Nektaspida Raymond, 1920
       02 Order †Olenellida see Suborder Olenellina Walcott, 1890
       03 Order †Agnostida Salter, 1864
       04 Order †Redlichiida Richter, 1932
       05 Order †Corynexochida Kobayashi, 1935
       06 Order †Lichida Moore, 1959
       07 Order †Odontopleurida Whittington, 1959
       08 Order †Asaphida Salter, 1864
       09 Order †Ptychopariida Swinnerton, 1915
       10 Order †Proetida Fortey & Owens, 1975
       11 Order †Phacopida Salter, 1864
       12 Order †uncertain