Illustrations of plant microfossils from the Morrison Formation Ii. plant microfossils from the Westwater Canyon Member
Reference:
Tschudy,R.H. et al. (1981)
Illustrations of plant microfossils from the Morrison Formation Ii. plant microfossils from the Westwater Canyon Member United States Geological Survey, Open-File Report
Vol. 81 # 81 P. 1- 2