File:A Tyrannosaurus Rex tooth found by Barb Beasley during a 2012 Passport in Time excavation in the Late Cretaceous Hell Creek Formation on the Custer National Forest in South Dakota on June 22, 2012.jpg
![File:A Tyrannosaurus Rex tooth found by Barb Beasley during a 2012 Passport in Time excavation in the Late Cretaceous Hell Creek Formation on the Custer National Forest in South Dakota on June 22, 2012.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/A_Tyrannosaurus_Rex_tooth_found_by_Barb_Beasley_during_a_2012_Passport_in_Time_excavation_in_the_Late_Cretaceous_Hell_Creek_Formation_on_the_Custer_National_Forest_in_South_Dakota_on_June_22%2C_2012.jpg/800px-thumbnail.jpg?20130429142602)
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[edit]DescriptionA Tyrannosaurus Rex tooth found by Barb Beasley during a 2012 Passport in Time excavation in the Late Cretaceous Hell Creek Formation on the Custer National Forest in South Dakota on June 22, 2012.jpg |
English: A Tyrannosaurus Rex tooth found by Barb Beasley during a 2012 Passport in Time excavation in the Late Cretaceous Hell Creek Formation on the Custer National Forest in South Dakota on June 22, 2012. Unlike mammals that only possess two sets of teeth during their lifetime, dinosaurs replaced worn teeth by shedding them continuously throughout their lives. A single Tyrannosaurus may have shed hundreds or even thousands of teeth during its lifetime. U.S. Forest Service photo by Rhonda Fore. |
Date | |
Source | https://www.flickr.com/photos/usdagov/8619420097/sizes/o/in/photostream/ |
Author | USDAgov |
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This image was originally posted to Flickr by USDAgov at https://www.flickr.com/photos/41284017@N08/8619420097. It was reviewed on 29 April 2013 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
29 April 2013
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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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current | 14:26, 29 April 2013 | ![]() | 3,648 × 2,736 (2.29 MB) | RogDel (talk | contribs) | User created page with UploadWizard |
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Camera model | COOLPIX S203 |
Exposure time | 5/2,374 sec (0.002106149957877) |
F-number | f/4.6 |
ISO speed rating | 80 |
Date and time of data generation | 07:48, 22 June 2012 |
Lens focal length | 6.3 mm |
Width | 3,648 px |
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Bits per component |
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Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 11.0 Windows |
File change date and time | 10:17, 3 April 2013 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 07:48, 22 June 2012 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 8.876517 |
APEX aperture | 4.403268 |
APEX exposure bias | 0 |
Maximum land aperture | 3.3 APEX (f/3.14) |
Metering mode | Pattern |
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Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 35 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Date metadata was last modified | 06:17, 3 April 2013 |
Unique ID of original document | 4B3D4BCA92A388EC0A60F873FD5C9493 |