WActinoceramus
WAntarctosuchus
WAustralodelphis
WCryobatrachus
WCynognathus
WEriciolacerta
WGondwanatheria
WKingena
WLystrosaurus
WMicraster
WMicrobiotheria
WMicrobiotheriidae
WMyosaurus
WNeithea
WPalaeeudyptes
WPalaeeudyptes antarcticus
WParotosuchus
WScenella
WTerebratellidae
WTerebratula
WTerebratulidae
WTryblidiida
WTritylodon