![]() ![]() The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. Locality: "Petrified Tree", northern Yellowstone National Park, nw Wyoming, USAįossil redwood tree trunk (probably Metasequoia) (Sepulcher Formation, Eocene "Petrified Tree", Yellowstone National Park, Wyoming, USA) 1 However, since this was a nomen nudumit is invalid. ![]() On 31 May, the scientific name for the living fossil, Metasequoia vivaHu & Cheng, first appeared in a Chinese publication (Hu, 1947). 132 Likes, 4 Comments - Brennan Martens (brennanthepaleodude) on Instagram: 'Happy fossilfriday everyone Here are some more extraordinary finds from Princeton An. Stratigraphy: Sepulcher Formation, Washburn Group, lower Absaroka Volcanics Supergroup, Eocene The sheet is annotated Metasequoia glyp-tostroboides Hu & Cheng in what appears to be E. 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.Ĭlassification: Plantae, Pinophyta, Pinopsida, Pinales, Cupressaceae The original microscopic-level anatomy of wood can be preserved in a permineralized fossil. Permineralization involves the precipitation of minerals (usually quartz - SiO2) in the porosity of wood or bone by groundwater that has percolated through. ![]() "Perminerlization" is the proper term for what most people called "petrified wood". Redwoods do not live in Yellowstone today, so the climate has clearly changed since the Eocene. The tree itself is a redwood, probably belonging to the genus Metasequoia. This is a scarce example of a still-standing, Eocene-aged fossil tree in Yellowstone Park, Wyoming. Description Fossil redwood tree trunk (probably Metasequoia) (Sepulcher Formation, Eocene "Petrified Tree", Yellowstone National Park, Wyoming, USA) 1 (13460816034).jpgįossil redwood tree trunk in the Eocene of Wyoming, USA. ![]()
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