sciencehabit writes: The fossils of various frondlike and sacklike organisms that supposedly lived at the bottom of ancient oceans may actually represent some of the earliest organisms to dwell on land. That's the controversial interpretation of a new study, which suggests that rocks long thought to have been formed from sediments deposited on ancient seafloors may actually be the remnants of early soils. If true, the finding would push back life's transition from sea to land by tens of millions of years—and possibly by 100 million years or more.
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