File:Dunkleosteus terrelli adult jaw - Cleveland Museum of Natural History (33964524024).jpg
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Summary
[edit]DescriptionDunkleosteus terrelli adult jaw - Cleveland Museum of Natural History (33964524024).jpg |
Cast of the lower jaw of an adult Dunkleosteus terrelli, on display at the Cleveland Museum of Natural History in Cleveland, Ohio, in the United States. The original fossil skull was collected by Peter Bungart in 1926 from the Cleveland Shale at the Rocky River Metropark in Cleveland, Ohio. Dunkleosteus terrelli was a prehistoric fish that lived about 380 to 360 million years ago. Unlike modern fish, it had massive, heavy bones in its skull. It was a carnivore that was about 33 feet long, making it the second-largest predator in the ocean at the time. It was not very fast, but it was a powerful swimmer -- and its bite was one of the most powerful ever found in nature. Dunkleosteus terrelli was first discovered in 1873. At the time, scientists thought it was part of the species Dinichthys, but they have since realized it was a separate species. Dunkleosteus was renamed in 1956. The name honors David Dunkle, a paleontologist at the Cleveland Museum of Natural History. There are several sub-species, but Dunkleosteus terrelli is the largest. It has been found throughout the U.S. (Ohio, Pennsylvania, Tennessee, California, and Texas). |
Date | |
Source | Dunkleosteus terrelli adult jaw - Cleveland Museum of Natural History |
Author | Tim Evanson from Cleveland Heights, Ohio, USA |
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This image was originally posted to Flickr by Tim Evanson at https://flickr.com/photos/23165290@N00/33964524024. It was reviewed on 6 January 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
6 January 2019
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current | 23:43, 6 January 2019 | 2,500 × 2,426 (4.58 MB) | CallyMc (talk | contribs) | Transferred from Flickr via #flickr2commons |
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ISO speed rating | 800 |
Date and time of data generation | 17:10, 10 February 2017 |
Lens focal length | 26 mm |
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |
Software used | Adobe Photoshop Lightroom 5.7.1 (Windows) |
File change date and time | 17:40, 21 May 2017 |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 17:10, 10 February 2017 |
APEX shutter speed | 4.906891 |
APEX aperture | 4.140779 |
APEX exposure bias | 0 |
Maximum land aperture | 4.2 APEX (f/4.29) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
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 | 39 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 | 13:40, 21 May 2017 |
Unique ID of original document | E0870222C3F2B6F0F6D2C36A03265A44 |
IIM version | 4 |