North America, United States, Late Triassic to Miocene, ca. 225 to 15 million years ago; North America / Siberia, Pliocene to Pleistocene period, ca. 2.6 million to 10,000 years ago. A polished fragment of a fossilized mammoth tooth, and a petrified / fossilized piece of wood. The tooth's enamel has been cut and polished to show the fossilized internal structures. The exterior bark is fossilized, replaced by rough stone, and remains of small knot holes are present! The petrification process involves the rapid burial of the tree or pieces under sediment which prevents the usual decay. Flooding and volcanic activity are usually responsible for creating the layers of sand, silt, and ash needed to create the right types and amount of sediment. The detailed preservation of the wood, including knots, rings, and bark, is possible because the organic wood molecules become coated and surrounded with smaller silica molecules. Size of wood: 11.75" L x 4" W (29.8 cm x 10.2 cm)

Provenance: private Boca Raton, Florida, USA collection

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#179711

Mammoth tooth is cut and polished on the enamel. Wood has some stable fissures and chips, otherwise intact.