WAnchitheriinae
WArchosaur
WCosoryx
WCrymocetus
WCryptosaurus
WEquus conversidens
WHadrosauridae
WHalisaurus
WHarpoceras
WHippidion
WHypselosaurus
WHypsibema missouriensis
WHypsilophodon
WMacrurosaurus
WOrnithocheirus
WPalaeolama
WPalaeortyx
WPerisphinctes
WRhabdodon
WTeleidosaurus