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Title: The first evidence of shelled organisms is calcareous tubes found with the Ediacaran fauna. Post by: cristinaloayza on Jan 23, 2018 The first evidence of shelled organisms is calcareous tubes found with the Ediacaran fauna. Title: The first evidence of shelled organisms is calcareous tubes found with the Ediacaran fauna. Post by: chicken on Jan 23, 2018 Content hidden
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