Poulton, Simon W.; Strauss, Harald; Canfield, Donald E.; Narbonne, Guy M.; Ross, Gerry; Goldberg, Tatiana; Knoll, Andrew(Science, 2008)Link to Published Version
Knoll, Andrew; Horstmann, Uwe E.; Strauss, Harald; Goldberg, Tatiana; Beukes, Nicolas J.; Lacassie, Juan P.; Schroeder, Stefan et al.(Precambrian Research, 2009)Link to Published Version