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Identification Of Fossil Wood From The Specimen Creek Area Of The Gallatin Petrified Forest, Yellowstone National Park, Montana, Tetsuya Yamamoto
Identification Of Fossil Wood From The Specimen Creek Area Of The Gallatin Petrified Forest, Yellowstone National Park, Montana, Tetsuya Yamamoto
Loma Linda University Electronic Theses, Dissertations & Projects
The petrified fossil forests in the Specimen Creek area of Gallatin Petrified Forest contain spectacular petrified tree stumps, trunks and logs in horizontal and vertical positions. These fossils forests are embedded in early middle Eocene volcaniclastic rocks and piled in sequential layers.
One hundred and nineteen fossil wood samples were collected from three selected layers [unit 1, unit 5 and unit 9, (DeBord 1977)] of the sequentially entombed Fossil Forests in the above area, and identified as follows: 3 families, 9 genera, in Gymnosperms; 13 families, 15 genera in Angiosperms.
PINACEAE: Keteleeria*, Larix*, Pinus, Tsuga*
PODOCARPACEAE: Podocarpus
TAXODIACEAE: Glyptostrobus*, Sequoia, …