WAdamantina Formation
WAllen Formation
WAreado Group
WAztec Sandstone
WBarun Goyot Formation
WBotucatu Formation
WCandeleros Formation
WCerro Azul Formation
WClarens Formation
WDjadochta Formation
WEtjo Sandstone
WForest Sandstone
WLa Puerta Formation, Bolivia
WMalargüe Group
WLa Matilde Formation
WMcCoy Brook Formation
WNavajo Sandstone
WOld Red Sandstone
WTalampaya Formation
WTarjados Formation
WTumblagooda Sandstone
WWingate Sandstone
WYeso Group