File:Greererpeton - Cleveland Museum of Natural History.jpg
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Summary
[edit]DescriptionGreererpeton - Cleveland Museum of Natural History.jpg |
English: greererpeton burkemorani 01 - Cleveland Museum of Natural History - 2014-12-26
It's a tetrapod, a four-limbed animal. Fishes were the first animals to evolve on Earth, and the lobe-finned fishes evolved into tetrapods. Tetrapods today involve everything from birds to dogs to frogs to lizards. Even human beings. This fossil was the first ever unearthed. It was discovered by William E. Moran and Cleveland Museum of Natural History paleontologists John J. Burke in 1969 in the Greer Quarry at Greer, West Virginia. Greererpeton was just under 5 feet in length, and had an elongated, eel-like body which gave it exceptionally good swimming abilities. Its skull, just 7 inches long, was flat and full of teeth for eating fish. The tail was long and upright, like a paddle. Marks on the skull indicate it had a "lateral line", an organ common in fish which allowed it sense vibration in the water and hunt prey. Indications are that Greererpeton was a primitive amphibian which lived in rivers and swamps. Its small, relatively undeveloped limbs indicate it rarely, if ever, ventured on land. |
Date | |
Source | https://www.flickr.com/photos/23165290@N00/20508695373/ |
Author | Tim Evanson |
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current | 02:26, 7 October 2015 | 2,500 × 1,029 (1.71 MB) | FunkMonk (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7100 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/4.5 |
ISO speed rating | 720 |
Date and time of data generation | 16:34, 26 December 2014 |
Lens focal length | 30 mm |
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |
Software used | Adobe Photoshop Lightroom 5.7.1 (Windows) |
File change date and time | 00:59, 4 September 2015 |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 16:34, 26 December 2014 |
APEX shutter speed | 5.906891 |
APEX aperture | 4.33985 |
APEX exposure bias | 0 |
Maximum land aperture | 4.4 APEX (f/4.59) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 40 |
DateTimeDigitized subseconds | 40 |
Focal plane X resolution | 2,558.641204834 |
Focal plane Y resolution | 2,558.641204834 |
Focal plane resolution unit | 3 |
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 | 45 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 2534693 |
Lens used | 18.0-55.0 mm f/3.5-5.6 |
Date metadata was last modified | 20:59, 3 September 2015 |
Unique ID of original document | 2FE0F49FE8B35849D7283A1533BDB5BF |
IIM version | 4 |