On the eve of animal radiation: phylogeny, ecology and evolution of the Ediacara biota.
On the eve of animal radiation: phylogeny, ecology and evolution of the Ediacara biota.
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DOI：
10.1016/j.tree.2008.07.015
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发表时间：
2009
影响因子：
16.8
通讯作者：
S. Xiao;M. Laflamme
中科院分区：
文献类型：
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作者：
S. Xiao;M. Laflamme
埃迪卡拉化石记录了寒武纪大爆发前的一个重要进化事件，并保存了宏观和复杂多细胞生命早期进化的关键信息。它们也代表了古生物学中一个持久的争议。埃迪卡拉化石与现存动物有何关系？他们是怎么生活的？它们与其他生命形式有共同的进化模式吗？最近的发展表明，埃迪卡拉化石是一个生物遗传多样性生物圈的缩影，可能包括动物、原生生物、藻类、真菌等。其简单的生态系统主要是底栖营养生物、存款饲养者和食草动物，但很少有捕食者。它们的演化开始于早期形态空间的扩张，随后在有限的形态空间内进行分类多样化，最后在埃迪卡拉-寒武纪边界的许多类群灭绝。
Ediacara fossils document an important evolutionary episode just before the Cambrian explosion and hold critical information about the early evolution of macroscopic and complex multicellular life. They also represent an enduring controversy in paleontology. How are the Ediacara fossils related to living animals? How did they live? Do they share any evolutionary patterns with other life forms? Recent developments indicate that Ediacara fossils epitomize a phylogenetically diverse biosphere, probably including animals, protists, algae, fungi and others. Their simple ecology is dominated by epibenthic osmotrophs, deposit feeders and grazers, but few if any predators. Their evolution started with an early morphospace expansion followed by taxonomic diversification within confined morphospace, and concluded by extinction of many taxa at the Ediacaran–Cambrian boundary.