Download or read book The Great Paleozoic Crisis written by Douglas H. Erwin and published by Columbia University Press. This book was released on 1993 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carefully examines the events recorded at the major Permo-Triassic boundary sections and documents the patterns of extinction and survival among the major groups of marine and terrestrial plants and animals. Erwin also provides a detailed summary of the climatic, geologic, geophysical and geochemical events of the Late Permian and Early Triassic.