Dong, L.; Xiao, S.; Shen, B.; Zhou, C. (2008). Silicified Horodyskia and Palaeopascichnus from upper Ediacaran cherts in South China: tentative phylogenetic interpretation and implications for evolutionary stasis. Journal of the Geological Society. 165(1): 367-378.
Silicified Horodyskia and Palaeopascichnus from upper Ediacaran cherts in South China: tentative phylogenetic interpretation and implications for evolutionary stasis