The Avalon Explosion: Evolution of Ediacara Morphospace

@article{Shen2008TheAE,
  title={The Avalon Explosion: Evolution of Ediacara Morphospace},
  author={Bing Shen and Lin Dong and Shuhai Xiao and Michał Kowalewski},
  journal={Science},
  year={2008},
  volume={319},
  pages={81 - 84}
}
Ediacara fossils [575 to 542 million years ago (Ma)] represent Earth's oldest known complex macroscopic life forms, but their morphological history is poorly understood. A comprehensive quantitative analysis of these fossils indicates that the oldest Ediacara assemblage—the Avalon assemblage (575 to 565 Ma)—already encompassed the full range of Ediacara morphospace. A comparable morphospace range was occupied by the subsequent White Sea (560 to 550 Ma) and Nama (550 to 542 Ma) assemblages… 

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...

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