Primitive Pollen Cone Structure in Upper Pennsylvanian (Stephanian) Walchian Conifers
Gene Mapes and Gar W. RothwellVolume:
72
Language:
english
Journal:
Journal of Paleontology
DOI:
10.2307/1306655
Date:
May, 1998
File:
PDF, 1.03 MB
english, 1998