File:Lingula permiana fossil brachiopod in shale (Washington Coal interval, Upper Pennsylvanian; Narrows Run South roadcut, Belmont County, Ohio, USA) 3.jpg
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[edit]DescriptionLingula permiana fossil brachiopod in shale (Washington Coal interval, Upper Pennsylvanian; Narrows Run South roadcut, Belmont County, Ohio, USA) 3.jpg |
English: Lingula permiana Stauffer & Schroyer, 1920 - fossil brachiopod in shale from the Pennsylvanian of Ohio, USA. (hand lens for scale)
The Upper Pennsylvanian to Lower Permian Dunkard Group of Ohio contains the youngest bedrock in the entire state. The unit consists of two stratigraphic formations: the Washington Formation (below) and the Greene Formation (above). This is a cyclothemic, nonmarine succession principally composed of shales, sandstones, lacustrine limestones, and thin coal beds. The fossil shown above is a lingulid inarticulate brachiopod. Lingulids first appear in Cambrian rocks and are still alive in today's oceans. They have a two-part, chitinophosphatic shell. The shells are subtriangular to elongated/tongue-shaped. Apart from concentric growth lines, they have no shell ornamentation. Soft parts are present between the shells and a long, vermiform pedicle extends from between the shells and into soft sediments. Lingulids are infaunal, filter-feeding organisms and occupy shallow shelf to intertidal zone environments. Fossil lingulids can be associated with burrows/trace fossils - in other words, lingulid brachiopod fossils are sometimes found in-situ, at the bottoms of their original living burrows. Classification: Animalia, Brachiopoda, Inarticulata (a.k.a. "Linguliformea"), Lingulida, Lingulidae Stratigraphy: fine-grained siliciclastic interval between the lower and upper "benches" of the Washington Coal, lower Washington Formation, lower Dunkard Group, Upper Pennsylvanian Locality: Narrows Run South Outcrop - large roadcut on the western side of Rt. 7, immediately south of Narrows Run, north of the town of Powhatan Point, next to the Ohio River, southeastern Belmont County, far-eastern Ohio, USA (39° 54’ 06.70” North latitude, 80° 48’ 38.80” West longitude) More info. at: en.wikipedia.org/wiki/Lingula_(brachiopod) |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/29745392176/ |
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@N05/29745392176 (archive). It was reviewed on 4 March 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
4 March 2020
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current | 16:25, 4 March 2020 | 2,812 × 2,047 (4.12 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/29745392176/ with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/100 sec (0.01) |
F-number | f/8 |
ISO speed rating | 80 |
Date and time of data generation | 14:58, 11 September 2016 |
Lens focal length | 6.2 mm |
Image title | |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 00:13, 19 September 2016 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 14:58, 11 September 2016 |
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Image compression mode | 3 |
APEX shutter speed | 6.65625 |
APEX aperture | 6 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 18:13, 18 September 2016 |
Unique ID of original document | 7EB67E940703284567B3E0CF5C8D6085 |