Previous Article Next Article Table of Contents Science, Vol.274, No.5292, 1552-1552, 1996 DOI10.1126/science.274.5292.1552 Export Citation Late Permian Extinctions - Reply Wignall PB, Twitchett RJ Keywords:TRIASSIC MASS EXTINCTION;SULFUR;AGE Please enable JavaScript to view the comments powered by Disqus.
