- Origin: Arizona, USA
- Age: Triassic, 220 million years
- Size: H58cm W53cm D3cm
- Weight: 14 Kg
- Description: Araucarioxylon arizonicum from the Triassic (circa 220 million years ago) sliced in cross-section and polished to reveal rich colours of so famed from this location, the texture to the edges preserved.
- Additional Information: Petrified wood, fossil formed by the invasion of minerals into cavities between and within cells of natural wood, usually by silica (silicon dioxide, SiO2) or calcite (calcium carbonate, CaCO3).