File:Bivalve fossils (Stump Formation, Jurassic; Dinosaur National Monument, Utah, USA) 24 (48828157343).jpg
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[edit]DescriptionBivalve fossils (Stump Formation, Jurassic; Dinosaur National Monument, Utah, USA) 24 (48828157343).jpg |
Bivalve fossils in the Jurassic of Utah, USA. This bedding plane is covered with fossil clams (bivalves). The rock is part of a large talus block from the Jurassic-aged Stump Formation, a marine, mixed-siliciclastics unit. I think the lithology here is limestone - fossil bivalves have been reported from limestone interbeds in the Stump. Known Stump Formation bivalves include Camptonectes, Meleagrinella, Ostrea, Oxytoma, and Vaugonia Stratigraphy: Stump Formation, Middle Jurassic to Upper Jurassic Locality: Fossil Discovery Trail, western Dinosaur National Monument, northern Uintah County, northeastern Utah, USA (vicinity of 40° 26' 30.98" North latitude, 109° 17' 56.89" West longitude) See info. at: <a href="https://en.wikipedia.org/wiki/Dinosaur_National_Monument" rel="noreferrer nofollow">en.wikipedia.org/wiki/Dinosaur_National_Monument</a> Geologic map of Dinosaur National Monument: <a href="https://pubs.usgs.gov/imap/1407/plate-1.pdf" rel="noreferrer nofollow">pubs.usgs.gov/imap/1407/plate-1.pdf</a> |
Date | |
Source | Bivalve fossils (Stump Formation, Jurassic; Dinosaur National Monument, Utah, USA) 24 |
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@N05/48828157343 (archive). It was reviewed on 8 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
8 October 2019
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current | 00:44, 8 October 2019 | 4,000 × 3,000 (8.72 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/11 |
ISO speed rating | 80 |
Date and time of data generation | 16:39, 8 June 2012 |
Lens focal length | 11.614 mm |
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 16.0 (Macintosh) |
File change date and time | 14:02, 1 October 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 16:39, 8 June 2012 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 7.3125 |
APEX aperture | 6.90625 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
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File source | Digital still camera |
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Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 10:02, 1 October 2019 |
Unique ID of original document | 2465AE0D5F0285B14B2471006649CFA7 |