Author:

Wang,Z.

Year:

1991

Title:

Advances on the Permo-Triassic Lycopods in North China I) an Isoetes from the Mid-Triassic in northern Shaanxi Province

Reference:

Wang,Z. (1991) Advances on the Permo-Triassic Lycopods in North China I) an Isoetes from the Mid-Triassic in northern Shaanxi Province Pal¤eontographica Abteilung B Vol. 222 # 1 P. 1- 30

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