WCycnorhamphus
WDasornis
WDiscoscaphites
WHarpagodes
WHomalodotherium
WHyopsodus
WIchthyodectes
WLorieroceras
WLystrosaurus
WMegacerops
WNotharctusWNotharctus tenebrosus
WOrnithocheirae
WOrnithocheiridae
WOrnithopsis
WPseudovomer
WPuppigerus
WSaniwa
WWilliamsonia (plant)
WXiphactinus