δ13Ccarb (‰, V-PDB) chemostratigraphic data of the Ediacaran Period in South China plotted against (A) stratigraphic height and (B) estimated geological time. Data source: Doushantuo Formation at the Jiulongwan section (Jiang et al., 2007; McFadden et al., 2008); Denging Formation at the Gaojiashan section (Cui, 2015; Cui et al., 2016b). Abbreviations: K = Kuanchuanpu Formation, <MI> = Cambrian, Cryog. = Crogenian Period. EN = Ediacaran δ13Ccarb Negative excursions. See the main text for detailed discussion.