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Data sets Publications Expeditions Thesaurus
Eureka Quartzite  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
 ....Eureka Quartzite
RTUtah
 California
 Nevada
SNMiddle to Upper? Ordovician. N Nevada, E California and NW Utah. Added to Thesaurus in 1985.