fossil marine animal genera Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Chordata Bateson, 1885 - chordates see Phylum Chordata Bateson, 1885
       Class †Placodermi McCoy, 1848
         01 Order †Stensioellida Romer, 1945 see Order Stensioelliformes
         02 Order †Pseudopetalichthida see Order Pseudopetalichthyiformes
         03 Order †Rhenanida Broili, 1930 see Order Rhenaniformes
         04 Order †Ptyctodontida Gross, 1932 see Order Ptyctodontiformes
         05 Order †Acanthothoraci Stensiö, 1944 see Order Acanthothoraciformes
         06 Order †Brindabellaspida Young, 1980 see Order Acanthothoraciformes
         07 Order †Petalichthida see Order Petalichthyida Jaekel, 1911
         08 Order †Arthrodira Woodward, 1891 see Order Arthrodiriformes Grande & Eastman, 1986
         09 Order †Antiarcha (Cope, 1885) see Order Antiarchiformes Grande & Eastman, 1986
         10 Order †uncertain