Arkansas Novaculite  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...upper Paleozoic
 ....Arkansas Novaculite
RTDevonian
 Mississippian
 Oklahoma
 Arkansas
SNDevonian and Mississippian. SW Arkansas and SE Oklahoma. Indexed with ages as applicable. Added to Thesaurus in 1985.