WAdapiformes
WAivukus
WAncalagon (animal)
WArandaspis
WCaerorhachis
WCimbrophlebia
WCormohipparion
WDendropithecus
WEchinochimaera
WEosalmo
WBennu heron
WJamaican ibis
WLimnofregata
WOpisthocoelicaudia
WOuranopithecus
WOuranopithecus macedoniensis
WPiveteausaurus
WSaichania
WSilphedosuchus
WTarchia
WThalassoleon
WTuojiangosaurus
WValdosaurus
WWannanosaurus