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Biology, 24.02.2021 17:00 21cassitsh

Suppose a fern fossil is found between layer Y and layer z during which time range with fern fossil most likely have formed? A.2-10 million years ago
B.10-30 million years ago
C.30-50 million years ago
D.50-70 million years ago

Suppose a fern fossil is found between layer Y and layer z during which time range with fern fossil

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