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Among the Giants, Tiny Footprints
The Scientist 2004, 18(3):14
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It's a slab of rock, two-by-two feet square, which tells a 75-million-year-old story. Imprinted in one part is a footprint indentation (below the coin) of a tiny mammal and the impressions of a leaf; on another part are marks typically left by raindrops.
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