Evolutionary explosions and the phylogenetic fuse

被引：139

作者：

Cooper, A ^{[1
]}

Fortey, R

机构：

[1] Univ Oxford, Dept Biol Anthropol, Oxford OX2 6QS, England

[2] Nat Hist Museum, Dept Palaeontol, London SW7 5BD, England

来源：

TRENDS IN ECOLOGY & EVOLUTION | 1998年 / 13卷 / 04期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/S0169-5347(97)01277-9

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

A literal reading of the fossil record indicates that the early Cambrian (c. 545 million years ago) and early Tertiary (c. 65 million years ago) were characterized by enormously accelerated periods of morphological evolution marking the appearance of the animal phyla, and modern bird and placental mammal orders, respectively. Recently, the evidence for these evolutionary 'explosions' has been questioned by cladistic and biogeographic studies which reveal that periods of diversification before these events are missing from the fossil record. Furthermore, molecular evidence indicates that prolonged periods of evolutionary innovation and cladogenesis lit the fuse long before the 'explosions' apparent in the fossil record.

引用

页码：151 / 156

页数：6

共 39 条

[1] Fossil evidence for a Late Cretaceous origin of ''hoofed'' mammals [J].