fossil record
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Like many other Ediacaran organisms, they vanished from the fossil record at the start of the Cambrian period roughly 540 million years ago.
From Science Daily • Jun. 10, 2026
Using a technique known as Approximate Bayesian Computation, the researchers worked backward from the fossil record to estimate how far organisms spread and how intensely they competed for resources.
From Science Daily • Jun. 10, 2026
The oldest skin bones in the fossil record may date back 475 million years.
From Science Daily • May 21, 2026
Finding them in rocks this old would have pushed back the fossil record for these organisms significantly.
From Science Daily • May 12, 2026
The fossil record speaks to us unambiguously of creatures that once were present in enormous numbers and that have now vanished utterly.'
From "Cosmos" by Carl Sagan
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