Cosmic genes in the cretaceous-tertiary transition

被引：1
|
作者：
Wallis, MK [1 ]
机构：
[1] Cardiff Univ, Cardiff Ctr Astrobiol, Cardiff, S Glam, Wales
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2003年 / 285卷 / 02期
关键词：
D O I：
10.1023/A:1025498106598
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is proposed that genes coding for Aib-polypeptides arose early on in the K/T transition, presumed from the Earth's accretion of interplanetary ( comet) dust. Aib-fungi flourished because of the evolutionary advantage of novel antibiotics. The stress on Cretaceous biology led directly and indirectly to mass species extinctions, including many dinosaur species, in the epoch preceding the Chicxulub impact.
引用
收藏
页码：587 / 592
页数：6
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