Yang, Y. A pictorial guide to palaeontology – prehistoric aquatic reptiles. Peking Natural Science Organisation, 304 pp.
Young Chung-chien. 1965. On the new nothosaurs from Hupeh and Kweichou, China. Vertebrata Palasiatica, 9, (4), 337-357.
Yang, Y. A pictorial guide to palaeontology – prehistoric aquatic reptiles. Peking Natural Science Organisation, 304 pp.
Young Chung-chien. 1965. On the new nothosaurs from Hupeh and Kweichou, China. Vertebrata Palasiatica, 9, (4), 337-357.