TY - CHAP T1 - Extinction and the origin of species T2 - Extinction and Phylogeny Y1 - 1992 A1 - Nixon, K. C. A1 - Wheeler, Q. D. ED - Novacek, M. J. ED - Wheeler, Q. D. SP - 119 EP - 143 KW - EXTINCTION KW - PHYLOGENY KW - species JF - Extinction and Phylogeny PB - Columbia University Press CY - New York ER -