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 Order †Stensioellida Romer, 1945 see Order Stensioelliformes