Yongdong W, Guanglong S, Xiuyuan W. Micro- and megafloral remains of namurian H-G1 zones from Zhongwei of Ningxia, China. JPS [Internet]. 1996 Dec. 31 [cited 2024 May 7];45:224-32. Available from: https://www.jpsonline.co.in/index.php/jop/article/view/1237