Woodbine Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Gulfian
 ......Woodbine Formation
RTLouisiana
 Oklahoma
 Texas
 Arkansas
SNIn Oklahoma, lower member is principally crossbedded dark tuffaceous sand, red clay, and gravel lentils. Upper member mostly gray to brown crossbedded quartz and sandy gravel. SW Arkansas, W Louisiana, central S and SE Oklahoma, and Texas. Also search Woo