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  2. Petrifaction - Wikipedia

    en.wikipedia.org/wiki/Petrifaction

    Tree remains that have undergone petrifaction, as seen in Petrified Forest National Park. In geology, petrifaction or petrification (from Ancient Greek πέτρα (pétra) 'rock, stone') is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.

  3. Petrified wood - Wikipedia

    en.wikipedia.org/wiki/Petrified_wood

    Unlike other plant fossils, which are typically impressions or compressions, petrified wood is a three-dimensional representation of the original organic material. The petrifaction process occurs underground, when wood becomes buried in water or volcanic ash .

  4. Permineralization - Wikipedia

    en.wikipedia.org/wiki/Permineralization

    Polished section of petrified wood showing annual rings. Most dinosaur bones are permineralized. Petrified wood: Permineralization is the first step in petrification. In petrification, the cellulose cell walls are completely replaced by minerals.

  5. Why Petrified Forest National Park deserves to be a ... - AOL

    www.aol.com/why-petrified-forest-national-park...

    Visitors can see paleontologists work on a variety of fossils and artifacts at the park’s Museum Demonstration Lab or ask park rangers about Petrified Forest’s more modern history.

  6. Arizona is full of fossils. Here's where to look for ancient ...

    www.aol.com/arizona-full-fossils-heres-where...

    A fossil preparator handles fossils found in Petrified Forest National Park at the museum's demonstration lab. Visitors are not allowed to take fossils from the park.

  7. Fossil wood - Wikipedia

    en.wikipedia.org/wiki/Fossil_wood

    Over time the wood will usually be the part of a plant that is best preserved (and most easily found). Fossil wood may or may not be petrified, in which case it is known as petrified wood or petrified tree. The study of fossil wood is sometimes called palaeoxylology, with a "palaeoxylologist" somebody who studies fossil wood.

  8. Fossil - Wikipedia

    en.wikipedia.org/wiki/Fossil

    Fossil wood is wood that is preserved in the fossil record. Wood is usually the part of a plant that is best preserved (and most easily found). Fossil wood may or may not be petrified. The fossil wood may be the only part of the plant that has been preserved; [99] therefore such wood may get a special kind of botanical name.

  9. Petrified Forest National Park - Wikipedia

    en.wikipedia.org/wiki/Petrified_Forest_National_Park

    The Petrified Forest is known for its fossils, especially fallen trees that lived in the Late Triassic Epoch, about 225 million years ago. The sediments containing the fossil logs are part of the widespread and colorful Chinle Formation, from which the Painted Desert gets its name.

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