Zubair Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Lower Cretaceous
 .....Zubair Formation
RTHauterivian
 Aptian
 Middle East
 Iraq
SNHauterivian to lower Aptian. In N, central, and S Iraq. In S, comprises over 1200 feet of sandstones, siltstones, and shales.