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Credit: Wikimedia Commons / Mark A. Wilson |
To finish reading, click on "The Cambrian Explosion Mystery Deepens".The scientists found there were similar opportunities for preservation in both the Cambrian and Precambrian rocks, and yet arthropod fossils and trace fossils are found only in the Cambrian sediments. “The lack of euarthropod body fossils in the Ediacaran biota is mirrored in all other preservational regimes in the Precambrian, including BSTs [Burgess Shale Type deposits], phosphatised microfossils, and chert deposits.”They also found that euarthropod trace fossils are “strikingly absent” during the Ediacaran period.
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