File:Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (24547988544).jpg
![File:Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (24547988544).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Coiled_cephalopod_%28Lowellville_Shale%2C_Lower_Pennsylvanian%3B_Beach_City_Dam_outcrop%2C_northeastern_Ohio%2C_USA%29_1_%2824547988544%29.jpg/800px-Coiled_cephalopod_%28Lowellville_Shale%2C_Lower_Pennsylvanian%3B_Beach_City_Dam_outcrop%2C_northeastern_Ohio%2C_USA%29_1_%2824547988544%29.jpg?20170624171935)
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[edit]DescriptionCoiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (24547988544).jpg |
Coiled cephalopod in the Pennsylvanian of Ohio, USA. "Lowellville Shale" is the nickname used here for dark-colored mudshales overlying the Lowellville Limestone in the Pottsville Group of northeastern Ohio, USA. Just above the Lowellville Limestone at the Beach City Dam outcrop, the Lowellville Shale is fissile to flaggy, fossiliferous, black calcareous shale. Above that is non-flaggy, sparsely-fossiliferous, incompetent, black calcareous shale. Observed fossils include Posidonia bivalves, Trepospira gastropods, crinoid stem columnals, straight-shelled nautiloid cephalopods, coiled cephalopods, plants, and horizontal burrows. The Lowellville Shale and underlying Lowellville Limestone are part of the Pottsville Group, a Pennsylvanian-aged cyclothemic succession in eastern Ohio that contains nonmarine shales, marine shales, siltstones, sandstones, coals, marine limestones, and chert ("flint"). The lower Pottsville dates to the late Early Pennsylvanian. The upper part dates to the early Middle Pennsylvanian. The Lower-Middle Pennsylvanian boundary is apparently somewhere near the Boggs Member (?). Shown above is a mold of an unidentified coiled cephalopod shell in dark mudshale. It is either a coiled nautiloid or an ammonoid. This type of creature is basically a squid-in-a-shell, similar to the modern chambered nautilus (www.flickr.com/photos/jsjgeology/21726189464). Classification: Animalia, Mollusca, Cephalopoda, Nautiloidea or Ammonoidea Stratigraphy: Lowellville Shale, just above the Lowellville Limestone, Pottsville Group, upper Lower Pennsylvanian Location: Beach City Dam outcrop - exposure on the southern side of Sugar Creek, immediately downstream from Beach City Dam, northern Franklin Township, northwestern Tuscarawas County, northeastern Ohio, USA (40° 38’ 06.71” North latitude, 81° 33’ 21.80” West longitude) |
Date | |
Source | Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern 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@N05/24547988544. It was reviewed on 24 June 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
24 June 2017
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current | 17:19, 24 June 2017 | ![]() | 3,530 × 2,372 (4.04 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Date and time of data generation | 17:18, 31 October 2015 |
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Image title | |
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Orientation | Normal |
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Horizontal resolution | 180 dpi |
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File change date and time | 16:51, 21 February 2016 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:18, 31 October 2015 |
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Maximum land aperture | 2.96875 APEX (f/2.8) |
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Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 09:51, 21 February 2016 |
Unique ID of original document | D544AEC62BB0517A057BAB3845DE455D |