A newly discovered fossil layer shows evidence that conifers and cycads flourished when the fossils were laid down.Below this layer there are no conifers or cycads.These fossils are most likely from the

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The Permian period is known for the dominance of conifers and cycads, which were common during that time. The absence of these plants below the newly discovered fossil layer suggests that they did not exist before the Permian period.

A Newly Discovered Fossil Layer Shows Evidence That Conifers and Cycads