Miospores associated with the Flint Clay, ("Altered Volcanic Ash"), with the Fire Clay Coal of eastern Kentucky.
Reference:
Grosse,C.W. et al. (1984)
Miospores associated with the Flint Clay, ("Altered Volcanic Ash"), with the Fire Clay Coal of eastern Kentucky. Geological Society of America, Abstracts with Program, 95th Annual Meeting
Vol. 16 # 3 P. 142- 142