Cuticular and palynological analyses of vegetational change across the Cretaceous/Tertiary boundary at Sugarite, Raton Basin, New Mexico.
Reference:
Upchurch,G.R. et al. (1985)
Cuticular and palynological analyses of vegetational change across the Cretaceous/Tertiary boundary at Sugarite, Raton Basin, New Mexico. American Journal of Botany
Vol. 72 # 6 P. 904- 904