File:Mascall-Mural.jpg
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Summary
[edit]DescriptionMascall-Mural.jpg |
The 16-13 million year old Mascall assemblage caps the Picture Gorge Basalts with a sequence of ashy layers and paleosols (fossilized soils). It records a gradual yet influential climate change event that took place over millions of years, the mid-Miocene climatic optimum. Paleosol evidence from the Mascall assemblage indicates a period where forests returned, outcompeting the sagebrush steppe of the mid-Miocene. These wooded environments were similar to modern temperate forests found in the Eastern United States, filled with swamp cypress along bodies of water, deciduous forests in the lowlands, and coniferous forests in upland habitats. Though forests dominated the area, the decline in shrub land allowed for the growth of short sod grasslands. Grazing animals lived alongside the more common, larger mammals that dominate the Mascall fauna. Dominant Fossils Found in this Assemblage: Mylagaulus (rodent) Tephrocyon (bear-dog) Dromomeryx (giraffe-deer, hooved animal) Merychippus (three-toed horse) Gomphotherium (trunked, four tusked elephant relative) Parahippus (three toed horse) Archaeohippus (three toed horse) Taxodium (Swamp cypress) Aphelops (rhino) Miolabis (camel) Pseudaelurus (panther relative, tree climbing cat) Amphicyon (bear-dog) Mixed forest (Celtis, Liquidambar, Quercus, Ulmus, Acer, Fagus, etc.) Leptarctus (weasel) Clemmys (turtle) Falcon, unidentified Dipoides (beaver relative) |
Date | |
Source | https://www.nps.gov/joda/learn/nature/mascall.htm |
Author | Roger Witter |
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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. | ![]() |
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This image is a work of a Bureau of Land Management* employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States. *or predecessor organization |
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current | 09:07, 11 May 2018 | ![]() | 8,282 × 4,800 (5.04 MB) | Mariomassone (talk | contribs) | == {{int:filedesc}} == {{Information | Description = The 16-13 million year old Mascall assemblage caps the Picture Gorge Basalts with a sequence of ashy layers and paleosols (fossilized soils). It records a gradual yet influential climate change event that took place over millions of years, the mid-Miocene climatic optimum. Paleosol evidence from the Mascall assemblage indicates a period where forests returned, outcompeting the sagebrush steppe of the mid-Miocene. These wooded environment... |
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Width | 8,282 px |
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Height | 4,800 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 14:28, 12 July 2014 |
Color space | Uncalibrated |
Date and time of digitizing | 12:10, 2 December 2008 |
Date metadata was last modified | 07:28, 12 July 2014 |
Unique ID of original document | uuid:9E35E112C21311DDA34A8DB2ABC2CCC5 |
Copyright status | Copyright status not set |
IIM version | 2 |