File:Acritohippus isonesus (fossil horse) (Sheep Creek Formation, Middle Miocene; Sheep Creek, Nebraska, USA) 4 (31691397563).jpg
![File:Acritohippus isonesus (fossil horse) (Sheep Creek Formation, Middle Miocene; Sheep Creek, Nebraska, USA) 4 (31691397563).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Acritohippus_isonesus_%28fossil_horse%29_%28Sheep_Creek_Formation%2C_Middle_Miocene%3B_Sheep_Creek%2C_Nebraska%2C_USA%29_4_%2831691397563%29.jpg/800px-Acritohippus_isonesus_%28fossil_horse%29_%28Sheep_Creek_Formation%2C_Middle_Miocene%3B_Sheep_Creek%2C_Nebraska%2C_USA%29_4_%2831691397563%29.jpg)
Original file (3,895 × 2,495 pixels, file size: 4.26 MB, MIME type: image/jpeg)
![]() | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionAcritohippus isonesus (fossil horse) (Sheep Creek Formation, Middle Miocene; Sheep Creek, Nebraska, USA) 4 (31691397563).jpg |
Acritohippus isonesus (Cope, 1889) - fossil horse skull from the Miocene of Nebraska, USA. (CM 9080, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA) This species is also known as Merychippus isonesus. From museum signage: "With Merychippus, the horse begins to look more like its modern-day counterpart. This creature stands at the midpoint of horse evolution. The greatest evolutionary adaptation comes right from the horse’s mouth. Merychippus was the earliest horse to adapt its diet to grass. Its higher crowned teeth and deep jaws were adaptations for grazing the tough prairie grass. Although it still had three toed feet rather than hooves, Merychippus was quite the runner and adept at dodging the predators of the day. " Classification: Animalia, Chordata, Vertebrata, Mammalia, Perissodactyla, Equidae Stratigraphy: Sheep Creek Formation, Middle Miocene Locality: Sheep Creek, northwestern Nebraska, USA |
Date | |
Source | Acritohippus isonesus (fossil horse) (Sheep Creek Formation, Middle Miocene; Sheep Creek, Nebraska, USA) 4 |
Author | James St. John |
Licensing
![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
![]() |
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/31691397563 (archive). It was reviewed on 4 November 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
4 November 2019
Captions
Items portrayed in this file
depicts
some value
17 November 2012
0.01666666666666666666 second
50 millimetre
400
image/jpeg
26ace6712c07c4788013e3f0d9c941db4d443a35
4,467,946 byte
2,495 pixel
3,895 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:44, 4 November 2019 | ![]() | 3,895 × 2,495 (4.26 MB) | Ainz Ooal Gown | Transferred from Flickr via #flickr2commons |
File usage
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D90 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/5 |
ISO speed rating | 400 |
Date and time of data generation | 15:28, 17 November 2012 |
Lens focal length | 50 mm |
Width | 4,288 px |
Height | 2,848 px |
Bits per component |
|
Pixel composition | RGB |
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 | 11:15, 24 January 2017 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 15:28, 17 November 2012 |
Meaning of each component |
|
Image compression mode | 4 |
Shutter speed | 5.906891 |
APEX aperture | 4.643856 |
Exposure bias | 0 |
Maximum land aperture | 4.6 APEX (f/4.92) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
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 | 75 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Serial number of camera | 3562538 |
Lens used | 18.0-270.0 mm f/3.5-6.3 |
Date metadata was last modified | 06:15, 24 January 2017 |
Unique ID of original document | 52028E25C16F23BD3DBAC22C593B293D |