Guandacol Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...upper Paleozoic
 ....Guandacol Formation
RTCarboniferous
 Upper Devonian
 Lower Permian
 Argentina
 San Juan Argentina
 La Rioja Argentina
 Paganzo Basin
SNPaganzo Basin, N Argentina. Carboniferous. May also have been considered Lower Permian or Upper Devonian. Indexed with age as applicable. Added to Thesaurus in 1995.