fossil marine animal genera Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Chordata Bateson, 1885 - chordates see Phylum Chordata Bateson, 1885
       Class Reptilia Linnaeus, 1758 - reptiles
         01 Order †Anaspida Sepkoski, 2002, orth. inval., incertae sedis see [unranked] Anapsida Osborn, 1903
         02 Order Chelonia Brongniart, 1800 see Class Chelonia Brongniart, 1800
         03 Order Squamata Oppel, 1811
         04 Order †Thalattosauria (Merriam, 1905)
         05 Order †Notosauria see Order Nothosauria Baur, 1889
         06 Order †Plesiosauria Blainville, 1835 - plesiosaurs
         07 Order †Placodontia Owen, 1859
         08 Order †Ichthyosauria Blainville, 1835
         09 Order Spheodontia
         10 Order Crocodilia see Order Crocodylia Wagler, 1830