DR. GILBERT S. GRANT / SCIENCE PHOTO LIBRARY DR. GILBERT S. GRANT / SCIENCE PHOTO LIBRARY
Dickinsonia sp. Ediacaran fossil from Australia. An unusual and iconic fossil of the Ediacaran biota. It is unclear whether Dickinsonia was an animal, fungus, plant, or member of a now-extinct kingdom. Precambrian period, Neoproterozoic era.
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