Ediacaran

E·di·a·ca·ran  (d-äk-rn)

adj.

Of or relating to a soft-bodied marine organism of the Precambrian Era, thought to be the earliest multicellular form of life.

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[After the Ediacara Hills in southern Australia, where the first such fossils were found.]

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Ediacaran  (d-äk-rn)

Relating to a group of fossilized organisms that are the earliest known remains of multicellular life. They are soft-bodied marine life forms that date from between 560 and 545 million years ago, during the late Precambrian Eon.