fossil marine animal genera Linnaeus, 1758 - animals Phylum Chordata Bateson, 1885 - chordates Chordata Bateson, 1885 - chordates see Phylum Chordata Bateson, 1885 Class †Acanthodii Owen, 1846 Order †Ischnacanthida Berg, 1940 see Order Ischnacanthiformes Berg, 1940