File:Fossil redwood tree trunk (probably Metasequoia) (Sepulcher Formation, Eocene; "Petrified Tree", Yellowstone National Park, Wyoming, USA) 18 (13460418925).jpg
_(Sepulcher_Formation,_Eocene;_%22Petrified_Tree%22,_Yellowstone_National_Park,_Wyoming,_USA)_18_(13460418925).jpg){kind=small}
Original file (2,848 × 4,288 pixels, file size: 5.45 MB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Fossil redwood tree trunk in the Eocene of Wyoming, USA. This is a scarce example of a still-standing, Eocene-aged fossil tree in Yellowstone Park, Wyoming. The tree itself is a redwood, probably belonging to the genus Metasequoia. Redwoods do not live in Yellowstone today, so the climate has clearly changed since the Eocene. The fossil wood has been permineralized. "Perminerlization" is the proper term for what most people called "petrified wood". Permineralization involves the precipitation of minerals (usually quartz - SiO2) in the porosity of wood or bone by groundwater that has percolated through. The original microscopic-level anatomy of wood can be preserved in a permineralized fossil. Sometimes mineralization can completely obscure the biologic structure of fossil wood - some paleontologists refer to that as quartz replacement, but it's just extreme permineralization. Classification: Plantae, Pinophyta, Pinopsida, Pinales, Cupressaceae Stratigraphy: Sepulcher Formation, Washburn Group, lower Absaroka Volcanics Supergroup, Eocene Locality: "Petrified Tree", northern Yellowstone National Park, nw Wyoming, USA |
| Date | |
| Source | Fossil redwood tree trunk (probably Metasequoia) (Sepulcher Formation, Eocene; "Petrified Tree", Yellowstone National Park, Wyoming, USA) 18 |
| Author | James St. John |
Licensing
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
|
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/13460418925 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:58, 6 December 2019 | | 2,848 × 4,288 (5.45 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
File usage
The following page uses this file:
_(Sepulcher_Formation,_Eocene;_%22Petrified_Tree%22,_Yellowstone_National_Park,_Wyoming,_USA)_18_(13460418925).jpg){kind=link}