01327nam a2200313 i 4500991002317549707536050303s2006 njua b 001 0 eng 0691005249b13508817-39ule_instDi.S.Te.B.A.eng576.8422LC QE721.2.E97E96546Erwin, Douglas H.,1958-625478Extinction :how life on earth nearly ended 250 million years ago /Douglas H. ErwinPrinceton, N. J. :Princeton University Press,c2006viii, 296 p. :ill. ;24 cmIncludes bibliographical references and indexExtinction (Biology)HistoryCatastrophes (Geology)Geology, StratigraphicPermianPaleontology, StratigraphicPublisher descriptionhttp://catdir.loc.gov/catdir/enhancements/fy0654/2005043376-d.htmlTable of contents onlyhttp://catdir.loc.gov/catdir/enhancements/fy0654/2005043376-t.html.b1350881728-01-1403-04-07991002317549707536LE003 576.84 ERW01.01 (2006)12003000088472le003pE24.11-l- 00000.i1450722509-07-07Extinction1220787UNISALENTOle00303-04-07ma -engnju40