List of dinosaurs
Halszkaraptor Halticosaurus Hanssuesia "Hanwulosaurus" – nomen nudum Haplocanthosaurus "Haplocanthus" – preoccupied name, now known as Haplocanthosaurus Haplocheirus Harpymimus Haya Hecatasaurus – junior synonym of Telmatosaurus "Heilongjiangosaurus" – nomen nudum Heishansaurus Helioceratops "Helopus" – preoccupied name, now known as Euhelopus Heptasteornis Herbstosaurus –  a pterosaur