Morphology and stratigraphical position of the megaspores of three species of Azolla, occurring in Belgian Cainozoic deposits
Reference:
Vanhoorne,R.E. (1984)
Morphology and stratigraphical position of the megaspores of three species of Azolla, occurring in Belgian Cainozoic deposits International Palynological Conference, 6th, Calgary. (Volume of Abstracts. J.Utting, editor)
P. 171- 171