File:Fossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 2 (33675894121).jpg
![File:Fossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 2 (33675894121).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Fossil_fish_bones_in_limestone_%28basal_Delaware_Limestone%2C_Middle_Devonian%3B_eastern_bank_of_the_Scioto_River%2C_Columbus%2C_Ohio%2C_USA%29_2_%2833675894121%29.jpg/777px-Fossil_fish_bones_in_limestone_%28basal_Delaware_Limestone%2C_Middle_Devonian%3B_eastern_bank_of_the_Scioto_River%2C_Columbus%2C_Ohio%2C_USA%29_2_%2833675894121%29.jpg?20191207190211)
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[edit]DescriptionFossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 2 (33675894121).jpg |
Fossiliferous limestone with fish bone fragments from the Devonian of Ohio, USA. (Orton Geology Museum, Ohio State University, Columbus, Ohio, USA) The Delaware Limestone is a significant carbonate unit in the Devonian of central and northern Ohio. It's actually part of a much more widespread sheet of Devonian carbonates that extends from New York State to the Midwest. The Delaware Limestone represents deposition in a subtropical, shallow-water, carbonate platform environment. The rocks are principally micritic limestones, fossiliferous wackestones, and fossiliferous packstones. Fossils are typical Paleozoic shallow marine invertebrates. The thin-bedded Delaware Limestone is underlain by the thick-bedded Columbus Limestone (also Devonian). The contact is a prominent disconformity (a type II sequence boundary). Biostratigraphic studies have shown that one conodont biozone is missing at the Columbus-Delaware contact in central Ohio, probably representing ~1 to 3 million years. The Delaware Limestone is overlain by soft gray clayshales of the Olentangy Shale (lower Upper Devonian). From accompanying signage: Fish has East bank of the Scioto River, Columbus, Ohio Between deposition of the Columbus Limestone and the overlying Delaware Limestone was a short period of erosion. Sometimes the low spots caused by that erosion are filled with a mixture of fish teeth and scales. Stratigraphy: basal Delaware Limestone, Eifelian Stage, lower Middle Devonian Locality: eastern bank of the Scioto River, Columbus, Franklin County, central Ohio, USA |
Date | |
Source | Fossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 2 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/33675894121 (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. |
7 December 2019
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current | 19:02, 7 December 2019 | ![]() | 3,886 × 3,000 (12.26 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Date and time of data generation | 10:43, 5 April 2012 |
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Image title | |
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Orientation | Normal |
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Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 21:23, 2 April 2017 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 10:43, 5 April 2012 |
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File source | Digital still camera |
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Digital zoom ratio | 1 |
Scene capture type | Standard |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 17:23, 2 April 2017 |
Unique ID of original document | B9BDC19870CE45144ED3D74E3FC21AF0 |