Assertion: ediacara fauna | /r/CapableOf | call ediacara
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text: Ediacara fauna , also called Ediacara biota , unique assemblage of soft-bodied organisms preserved worldwide as fossil impressions in sandstone from the Ediacaran Period (approximately 635 million to 541 million years ago)—the final interval of both the Proterozoic Eon (2.5 billion to 541 million years ago) and Precambrian time (4.6 billion to 541 million years ago).