Dating the tree of life

被引:187
作者
Benton, MJ [1 ]
Ayala, FJ
机构
[1] Univ Bristol, Dept Earth Sci, Bristol BS8 1RJ, Avon, England
[2] Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA
关键词
D O I
10.1126/science.1077795
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The relative merits of molecular and paleontological dates of major branching points in the tree of life are currently debated. In some cases, molecular date estimates are up to twice as old as paleontological dates. However, although it is true that paleontological dates are often too young (missing fossils), molecular dates are often too old (statistical bias). Intense study of the dating of major splits in the tree of mammals has shown rapprochement as fossil dates become older and molecular dates become younger.
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页码:1698 / 1700
页数:3
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