Word: precambrian
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Dates: during 1960-1969
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...found in the Canadian Arctic last summer [Nov. 12] now reports that on rechecking it has found a computational error and that the minimum age of the fossils is 445 million years. But the structural geologic relations indicate that this age is impossibly young: the fossils are almost surely preCambrian. Other tests by different methods are being undertaken. I hope they will resolve the uncertainty about the dates...