Climate warming in the latest Permian and the Permian-Triassic mass extinction Joachimski, M. M. ; Lai, X. ; Shen, S. ; Jiang, H. ; Luo, G. ; Chen, B. ; Chen, J. ; Sun, Y. Abstract Publication: Geology Pub Date: March 2012 DOI: 10.1130/G32707.1 Bibcode: 2012Geo....40..195J