The Virtual Petrified Wood Museum. Dedicated to the Exhibition and Educational Study of Permineralized Plant Material
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Jurassic Period: 199.6-145.5 Million Years Ago
Gallery: Cerro Cuadrado
Pararaucaria patagonica cones and an aerial lignotuber glued onto a stem. The best scientific evidence at this time indicates that these "mushroom-shaped" structures are aerial lignotubers, which were vegetative reproductive structures that arose in the axils of leaves in response to injury, such as fire (Dernbach, 2002).

The specimen above was put together from material that came from the same deposit. However, the association of the seperate pieces is not natural. At some mineral and fossil shows one can find Jurassic aged Patagonia cones glued to Triassic age Madagascar wood. The person who was selling this material was upfront about the nature of his artwork.

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