EARTH, ATMOSPHERIC, AND PLANETARY SCIENCES Correction for “High-precision timeline for Earth’s most severe extinction,” by Seth D. Burgess, Samuel Bowring, and Shu-zhong Shen, which appeared in issue 9, March 4, 2014, of Proc Natl Acad Sci USA (111:3316–3321; first published February 10, 2014; 10.1073/pnas.1317692111).
The authors note that Fig. 3 and its corresponding legend appeared incorrectly. The corrected figure and legend appear below.
Fig. 3.
Generalized Changshingian to Anisian carbonate carbon isotopic composition from South China. Bed thickness and number, carbonate carbon isotopic composition, weighted mean 206Pb/238U dates, and extinction interval (gray) within Fig. 1, Inset from this study and Cao et al. (11). Remainder of carbonate carbon isotopic composition from Payne et al. (52) and geochronology from Galfetti et al. (54). Permian and Triassic conodont zones from Ogg et al. (63). Stage/substage names are global standard chronostratigraphic units used by the International Commission on Stratigraphy.