“…Bergström, 1971Bergström, , 1983Lindström, 1971;Dzik, 1976Dzik, , 1994Löfgren, 1978Löfgren, , 1994Löfgren, , 2000Bagnoli and Stouge, 1997;Zhang, 1998b;Rasmussen, 2001;Viira et al, 2001) and the Darriwilian strata in South China (e.g. An, 1987;Zhang, 1998b;Wu et al, 2010). Bergström (1971) suggested that the E. suecicus …”