File:USNM 96488 Blountia polita trilobite (30513613421).jpg
![File:USNM 96488 Blountia polita trilobite (30513613421).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/USNM_96488_Blountia_polita_trilobite_%2830513613421%29.jpg/787px-USNM_96488_Blountia_polita_trilobite_%2830513613421%29.jpg?20200315010655)
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Summary
[edit]DescriptionUSNM 96488 Blountia polita trilobite (30513613421).jpg |
USNM_96488: The trilobite Blountia polita (USNM_96488) (pictured) was discovered in the Middle Cambrian (~520 million years ago), Pilgrim Formation of Yellowstone National Park. As trilobites continued to evolve during the Paleozoic, so did their vision. From a lack of eyes to compound eyes, trilobites' vision is well documented in the fossil record, and because of this, scientists are able to get insights on vision and the origin of eyes themselves. As trilobites' habitat changed, their bodies had to as well so they could continue to survive. Collecting any natural resources, including rocks and fossils, is illegal in Yellowstone. Photo by Megan Norr; March 2016; Catalog #20797d; Original #USNM_96488 |
Date | |
Source | USNM_96488 Blountia polita trilobite |
Author | Yellowstone National Park |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. | ![]() |
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This image was originally posted to Flickr by YellowstoneNPS at https://flickr.com/photos/80223459@N05/30513613421. It was reviewed on 16 March 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
16 March 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:06, 15 March 2020 | ![]() | 3,688 × 2,811 (4.87 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5200 |
Exposure time | 1/100 sec (0.01) |
F-number | f/5.6 |
ISO speed rating | 400 |
Date and time of data generation | 08:20, 11 February 2016 |
Lens focal length | 55 mm |
Short title |
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Image title |
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 10.0 Windows |
File change date and time | 14:14, 26 October 2016 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 08:20, 11 February 2016 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 50 |
DateTimeOriginal subseconds | 50 |
DateTimeDigitized subseconds | 50 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
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 | 1 |
Focal length in 35 mm film | 82 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | EE5E8E78F09D48D3B8E18C2350C74BA8 |
GPS tag version | 2.3.0.0 |
Supported Flashpix version | 1 |
Image width | 3,688 px |
Image height | 2,811 px |
Date metadata was last modified | 08:14, 26 October 2016 |
Unique ID of original document | uuid:faf5bdd5-ba3d-11da-ad31-d33d75182f1b |
Keywords |
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IIM version | 36,067 |