The Virtual Petrified Wood Museum.  Dedicated to the Exhibition and Educational Study of Permineralized Plant Material
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Specimen Ridge Virtual Hike
This specimen stands at a lower level than the two described in the previous slide. It is identified as a pine and has some bark still attached up higher on the trunk. This trunk is 3 feet in diameter and was nearly 30 feet high when measured by Knowlton (Knowlton, 1899, p. 13). The photograph in his 1899 monograph looks pretty much the same as this image except for the dead tree to the right, which was alive and much smaller.

Knowlton, F.H. (1899) The Fossil Forest of the Yellowstone National Park. USGS Monograph 32, pp. 651-791.

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