File:Dinochelys whitei.jpg
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Summary
DescriptionDinochelys whitei.jpg |
English: Dinochelys whitei Gaffney, 1979 - fossil turtle (cast of holotype) from the Jurassic of Utah, USA. (DNM 986, Dinosaur National Monument, Utah)
The chelonians are the turtles and tortoises. They are an ancient group of reptiles with a Triassic to Holocene stratigraphic record. Turtles are most easily recognized by their shell - some forms can retract the head & limbs into the shell when threatened, while other species cannot. Their overall body plan has changed very little since the Triassic - a great example of conservative evolution (but see the transitional fossil turtle Odontochelys semitestacea - en.wikipedia.org/wiki/Odontochelys). Chelonians occur in terrestrial, freshwater, brackish-water, and marine settings. Classification: Animalia, Chordata, Vertebrata, Reptilia, Anapsida, Testudines, Pleurosternidae Stratigraphy: Carnegie Quarry Sandstone, Brushy Basin Member, Morrison Formation, Kimmeridgian Stage, Upper Jurassic, ~150 to 156 Ma Locality: Carnegie Quarry, Dinosaur National Monument, northern Uintah County, northeastern Utah, USA See info. at: en.wikipedia.org/wiki/Cheloniidae and en.wikipedia.org/wiki/Turtle and www.nps.gov/dino/learn/nature/dinochelys-whitei.htm |
Date | Taken on 9 June 2012, 13:14:35 |
Source | https://www.flickr.com/photos/jsjgeology/48816091101/ |
Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/48816091101 (archive). It was reviewed on 30 September 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
30 September 2019
Captions
Items portrayed in this file
depicts
some value
9 June 2012
0.03333333333333333333 second
2.8
6.2 millimetre
320
image/jpeg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:25, 30 September 2019 | ![]() | 2,193 × 3,342 (6.07 MB) | commons>FunkMonk | User created page with UploadWizard |
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Metadata
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Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot D10 |
Exposure time | 1/30 sec (0.033333333333333) |
F Number | f/2.8 |
ISO speed rating | 320 |
Date and time of data generation | 13:14, 9 June 2012 |
Lens focal length | 6.2 mm |
Width | 3,000 px |
Height | 4,000 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 | 14:48, 29 September 2019 |
Exif version | 2.21 |
Date and time of digitizing | 13:14, 9 June 2012 |
Image compression mode | 3 |
APEX shutter speed | 4.90625 |
APEX aperture | 2.96875 |
APEX exposure bias | −1 |
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 | 16,460.90625 |
Focal plane Y resolution | 16,483.516129032 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Date metadata was last modified | 10:48, 29 September 2019 |
Unique ID of original document | 8FBB4B6DC7D61E92D5AA08884FF39180 |