Ha
- Hadrorhineura,
- Halazhaisuchus,
- Hallopidae †
- Hallopoda †
- Hanosaurus Young, 1972 †
- Hanosaurus,
- Haopterus Wang & Lü, 2001 †
- Haplodontosaurus,
- Harpactognathus Carpenter, Unwin, Cloward, Miles & Miles, 2003 †
- Harpagosaurus excedens,
- Harrisonsaurus,
- Hassiacosuchus †
- Hatzegopteryx Buffetaut, Grigorescu & Csiki, 2002 †
- Hauffiosaurus O'Keefe, 2001 †
He
- Helveticosauridae Peyer, 1955 †
- Helveticosauridae,
- Helveticosaurus
- Helveticosaurus (Rieppel, 1989) †
- Hemidactylus,
- Hemilopadidae,
- Hemilopas mentzeli,
- Hemilopas,
- Hemiphyllodactylus,
- Hemiprotosuchus †
- Henodontidae †
- Henodontidae,
- Henodus
- Henodus †
- Herbstosaurus Casamiquela, 1974 †
- Herrerasauria,
- Hescheleria Peyer, 1936 †
- Hesperosuchus †
- Heterosaurus †
- Hexatarostinus Hawkins, 1840 †
- Hexatarsostinus,
Hi
- Hispanochampsa †
Ho
- Hoburogekko,
- Hodzhakulia,
- Holbrookia,
- Holopsisuchus †
- Homoeosauri,
- Hongshanopterus Wang X. et al., 2008 †
- Hoplocercidae,
- Howesia,
- Hoyalacerta,
Hs
- Hsichosuchidae †
- Hsisosuchus †
Hu
†Hualianceratops Han et al. 2015
- †Hualianceratops wucaiwanensis Han et al. 2015 ; novootkrivena vrsta[1]
Diapsida → Ornithischia → Chaoyangsauridae
- Huanhepterus Dong, 1982 †
- Huaxiapterus Lü & Yuan, 2005 †
- Huehuecuetzpalli,
†Klada Hueneosauria Maisch and Matzke 2000
- †Longipinnati Huene 1948
- Hunosaurus,
- Hupehsuchia Young & Dong, 1972 †
- Hupehsuchia,
- Hupehsuchidae,
- Hupehsuchidae,
- Hupehsuchus Young, 1972 †
- Hupehsuchus,
Hy
- Hydralmosaurus Welles, 1943 †
- Hydrotherosaurus Welles, 1943 †
- Hylaeochampsa †
- Hylaeochampsidae †
- Hyperodapedontidae,
- Hyperodapedontinae,
- Hyphalosauridae,
- Hyphalosaurus,
- Hyporhina
- Hyporhinidae,
- Hypsocormus †