File:Hyracotherium vasacciense (fossil horse) (Huerfano Formation, Lower Eocene; Huerfano Basin, Colorado, USA) 2 (31658760084).jpg
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[edit]DescriptionHyracotherium vasacciense (fossil horse) (Huerfano Formation, Lower Eocene; Huerfano Basin, Colorado, USA) 2 (31658760084).jpg |
Hyracotherium vasacciense Cope, 1872 - fossil horse skeleton from the Eocene of Colorado, USA. (public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA) (based on AMNH specimens - American Museum of Natural History, New York City, New York, USA) This species is also known as Eohippus angustidens. From museum signage: "Popularly known as Eohippus or the dawn horse, Hyracotherium is the earliest known member of the horse family. However, with its small head, arched back, long tail, and spreading feet, the tiny Hyracotherium didn’t look much like the horse as we know it! Standing only two feet high, Hyracotherium roamed North America and Europe, 55 million years ago. Its low-crowned teeth were designed for eating the soft leaves of the abundant Eocene tropical forest. The size and complexity of Hyracotherium’s brain suggests the animal was relatively intelligent. This may help to explain the lengthy survival of of the horse through time. " Classification: Animalia, Chordata, Vertebrata, Mammalia, Perissodactyla, Equidae Stratigraphy: Huerfano Formation, Lower Eocene Locality: Huerfano Basin, Huerfano County, southern Colorado, USA See info. at: <a href="https://en.wikipedia.org/wiki/Eohippus" rel="nofollow">en.wikipedia.org/wiki/Eohippus</a> and <a href="https://en.wikipedia.org/wiki/Equidae" rel="nofollow">en.wikipedia.org/wiki/Equidae</a> |
Date | |
Source | Hyracotherium vasacciense (fossil horse) (Huerfano Formation, Lower Eocene; Huerfano Basin, Colorado, USA) 2 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/31658760084 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 December 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:03, 6 December 2019 | 868 × 574 (458 KB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | NIKON CORPORATION |
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Exposure time | 1/125 sec (0.008) |
F-number | f/5.6 |
ISO speed rating | 220 |
Date and time of data generation | 13:27, 21 July 2006 |
Lens focal length | 18 mm |
Width | 3,008 px |
Height | 2,000 px |
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 13.0 (Macintosh) |
File change date and time | 10:39, 24 January 2017 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 13:27, 21 July 2006 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 6.965784 |
APEX aperture | 4.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 3.6 APEX (f/3.48) |
Metering mode | Pattern |
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Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 90 |
DateTimeOriginal subseconds | 90 |
DateTimeDigitized subseconds | 90 |
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 | 27 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 1004a0cc |
Lens used | 18.0-70.0 mm f/3.5-4.5 |
Date metadata was last modified | 05:39, 24 January 2017 |
Unique ID of original document | 11F2DB83E51A75A77D7CF6B49A5A1088 |