Anatomical Structures of “Lepidodendron” pulchrum Zhang in Coal_balls from the Taiyuan Formation (Lower Lower Permian) in Shandong Province, North China
CHEN Gui-Ren,WANG Shi-Jun,TIAN Bao-Lin
Anatomical Structures of “Lepidodendron” pulchrum Zhang in Coal_balls from the Taiyuan Formation (Lower Lower Permian) in Shandong Province, North China
CHEN Gui-Ren,WANG Shi-Jun,TIAN Bao-Lin
J Integr Plant Biol . 2003, (1): 15 -22 .