Aspects of Permian palaeobotany and palynology. Xviii. on the morphology and ultrastructure of Potonieisporites novicus. (Prepollen of Late Carboniferous/Early Permian Walchiaceae)
Reference:
Poort,R.J. et al. (1997)
Aspects of Permian palaeobotany and palynology. Xviii. on the morphology and ultrastructure of Potonieisporites novicus. (Prepollen of Late Carboniferous/Early Permian Walchiaceae) Acta Botanica Neerlandica
Vol. 46 P. 161- 173