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Data sets Publications Expeditions Thesaurus
Renova Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Renova Formation
RTEocene
 Oligocene
 Montana
SNIn Bozeman Group. Eocene and Oligocene. SW Montana. Indexed with age as applicable. Added to Thesaurus in 1995.