Petrified tree fern. Polished section of a fossil of the trunk of the tree fern Psaronius. This specimen is approximately 15 centimetres across. It is

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Petrified tree fern. Polished section of a fossil of the trunk of the tree fern Psaronius. This specimen is approximately 15 centimetres across. It is from Chemnitz, Germany, and dates from the Permian period (250 to 299 million years ago). It is part of the collections held at the Natural History Museum, London, UK.

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Size: 2704px × 3231px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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