File:Pinguinus alfrednewtoni (fossil auk leg bone).jpg
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Summary
DescriptionPinguinus alfrednewtoni (fossil auk leg bone).jpg |
English: Pinguinus alfrednewtoni Olson, 1977 - fossil auk leg bone (left humerus) from the Miocene of North Carolina, USA. (collected September 1990)
Birds are small to large, warm-blooded, egg-laying, feathered, bipedal vertebrates capable of powered flight (although some are secondarily flightless). Many scientists characterize birds as dinosaurs, but this is consequence of the physical structure of evolutionary diagrams. Birds aren’t dinosaurs. They’re birds. The logic & rationale that some use to justify statements such as “birds are dinosaurs” is the same logic & rationale that results in saying “vertebrates are echinoderms”. Well, no one says the latter. No one should say the former, either. However, birds are evolutionarily derived from theropod dinosaurs. Birds first appeared in the Triassic or Jurassic, depending on which avian paleontologist you ask. They inhabit a wide variety of terrestrial and surface marine environments, and exhibit considerable variation in behaviors and diets. The fossil bird leg bone shown here belonged to Pinguinus alfrednewtoni, an ancient, extinct relative of the great auk, which was a Holocene species. Classification: Animalia, Chordata, Vertebrata, Aves, Charadriiformes, Alcidae or Panalcidae Locality: quarry north of Aurora, eastern North Carolina, USA See info. on the great auk: en.wikipedia.org/wiki/Great_auk |
Date | |
Source | https://www.flickr.com/photos/jsjgeology/28342865498/ |
Author | James St. John |
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7 April 2018
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Date/Time | Dimensions | User | Comment | |
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current | 15:36, 21 May 2018 | 2,754 × 748 (1.11 MB) | FunkMonk | User created page with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F Number | f/13 |
ISO speed rating | 80 |
Date and time of data generation | 15:47, 7 April 2018 |
Lens focal length | 14.303 mm |
Image title | |
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 13.0 (Macintosh) |
File change date and time | 23:03, 18 May 2018 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 15:47, 7 April 2018 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 7.40625 |
APEX exposure bias | -0.66666666666667 |
Maximum land aperture | 4.34375 APEX (f/4.51) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 19:03, 18 May 2018 |
Unique ID of original document | 99DB9D905C0AE78F82B2764695F76496 |