No fossil evidence of life has yet been found from this period.
不过，这个时期并没有发现生命的化石证据。
Discovering direct evidence of what a fossil animal ate.
找出古生物吃什么的直接证据是有价值的。
However, the fossil record retains evidence of many of these older species.
尽管如此，化石上的记录保留了很多古老物种存在过的证据。
They then found evidence that the fossil-bearing sediment was deposited soon after that time.
他们发现有证据表明了fossil - bearing泥沙沉积后不久的时间。
They then found evidence that the fossil-bearing sediment was deposited soon after that time.
他们发现有证据表明了fossil - bearing泥沙沉积后不久的时间。
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