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Contact: Susan Trulove
Virginia Tech

Doushantuo Fossil

Caption: The photo (field of view about 0.15 millimeter in width) is of an exceptionally preserved eukaryotic fossil from the Doushantuo Formation (635-551 million years old) in South China. High-resolution geochemical data from the Doushantuo Formation indicate that the early diversification of eukaryotes may have coupled with episodic oxygenation of Ediacaran oceans.

Credit: Photograph by Shuhai Xiao

Usage Restrictions: with report of research reported in PNAS

Related news release: 2 oxygenation events in ancient oceans sparked spread of complex life

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