File:Zoophycos in fine-grained sandstone (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 1 (35825528196).jpg
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[edit]DescriptionZoophycos in fine-grained sandstone (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 1 (35825528196).jpg |
Zoophycos trace fossil in sandstone from the Mississippian of Ohio, USA. This bedding plane surface is from the Borden Formation, a significant unit in the Lower Mississippian of Kentucky, Indiana, and Ohio. It represents an ancient deltaic succession. Prodeltaic, delta front, and delta top deposits are present in the Borden. Named members in eastern Kentucky and southern Ohio include (from bottom to top) the Henley Member (or Henley Bed), Farmers Member, Nancy Member, Cowbell Member, and Nada Member. Trace fossils are any indirect evidence of ancient life. They refer to features in rocks that do not represent parts of the body of a once-living organism. Traces include footprints, tracks, trails, burrows, borings, and bitemarks. Body fossils provide information about the morphology of ancient organisms, while trace fossils provide information about the behavior of ancient life forms. Interpreting trace fossils and determination of the identity of a trace maker can be straightforward (for example, a dinosaur footprint represents walking behavior) or not. Sediments that have trace fossils are said to be bioturbated. Burrowed textures in sedimentary rocks are referred to as bioturbation. Trace fossils have scientific names assigned to them, in the same style & manner as living organisms or body fossils. The curvilinear grooves in this sandstone are part of a trace fossil called Zoophycos, a distinctive feeding trace with an overall spiral morphology (for example, see: <a href="http://www.sjvgeology.org/geology/fossils/zoophycos_drawings.gif" rel="noreferrer nofollow">www.sjvgeology.org/geology/fossils/zoophycos_drawings.gif</a>). Stratigraphy: Henley Member, Borden Formation (formerly referred to as the Cuyahoga Formation), Lower Mississippian Locality: Tener Mountain roadcut along the northwestern side of Rt. 32 (= Appalachian Highway), just northeast of the Rt. 32-Union Hill Road intersection, just southwest of the Adams County-Pike County line, far-northeastern Adams County, southern Ohio, USA (39° 01' 12.88" North latitude, 83° 16' 43.16" West longitude) |
Date | |
Source | Zoophycos in fine-grained sandstone (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 1 |
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@N05/35825528196 (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 | 18:07, 7 December 2019 | 4,000 × 3,000 (5.09 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/160 sec (0.00625) |
F-number | f/9 |
ISO speed rating | 80 |
Date and time of data generation | 10:07, 9 July 2017 |
Lens focal length | 8.295 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 | 18:41, 11 July 2017 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 10:07, 9 July 2017 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 7.3125 |
APEX aperture | 6.34375 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
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 | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 14:41, 11 July 2017 |
Unique ID of original document | 8847CF951B439104668544DAE519683E |