File:Fish bone with blue vivianite (Chattanooga Shale, Upper Devonian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 2 (41446565435).jpg
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Summary[edit]
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| Description |
Fossil fish bone in the Devonian of Kentucky, USA. This is a piece of fossil fish bone - it is probably derived from a placoderm, an extinct group of mostly predatory, jawed fish (exemplified by Dunkleosteus - <a href="https://www.flickr.com/photos/jsjgeology/33974292562">www.flickr.com/photos/jsjgeology/33974292562</a>). The fossil was found in the basal Chattanooga Shale, a unit of dark-colored, chippy-weathering, marine mudshales of Late Devonian age. These black shales were deposited in a moderately deep, anoxic seafloor environment. This was a widespread lithofacies during the Late Devonian's Global Anoxia Event. The Chattanooga Shale is equivalent to the Ohio Shale, the Antrim Shale, and the New Albany Shale in surrounding states. The bluish coloration covering part of the bone is vivianite (Fe3(PO4)2·8H2O - hydrous iron phosphate). Classification: Animalia, Chordata, Vertebrata, Placodermi Stratigraphy: basal Chattanooga Shale, Upper Devonian Locality: roadcut on the northern side of Route 90, just west of Burkesville, central Cumberland County, southern Kentucky, USA (36° 47’ 51.17” North latitude, 85° 23’ 10.62” West longitude) |
| Date | |
| Source | Fish bone with blue vivianite (Chattanooga Shale, Upper Devonian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 2 |
| Author | James St. John |
Licensing[edit]
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/41446565435 (archive). It was reviewed on 7 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:07, 7 December 2019 | | 2,736 × 2,568 (5.29 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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