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66.1 MB (66.0 MB compressed)
5433 x 4252 pixels
46.0 x 36.1 cm ⏐ 18.1 x 14.2 in (300dpi)
DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY
Fossilised tree fern. Polished slab cut from the fossilised trunk of an extinct Tietea singularis tree fern. This specimen measures about 300mm in diameter, and was found in the Araguaina Petrified Forest, Tocantins, Brazil.
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