File:Model of Dunkleosteus terrelli (fossil placoderm) (Late Devonian; Cleveland, Ohio, USA) 1 (34189080296).jpg
_(Late_Devonian;_Cleveland,_Ohio,_USA)_1_(34189080296).jpg){kind=small}
Original file (962 × 468 pixels, file size: 325 KB, 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
| Description |
Dunkleosteus terrelli (Newberry, 1873) - model of a fossil fish skull from the Devonian of Ohio, USA. (public display, Cleveland Museum of Natural History, Cleveland, Ohio, USA) The placoderms are a group of extinct, mostly predatory fish that existed during the Middle Paleozoic (Silurian and Devonian). The most famous placoderm was Dunkleosteus, which was named after David Dunkle, an Ohio paleontologist. It was not a shark - it had a bony skull, a neck joint, and remarkably, the jaws lacked true teeth. Instead, the jawbones were sharp-edged and pointed. From museum signage: Dunkleosteus terrelli Giant fish found in the Rocky River Valley. Dunkleosteus is the most commonly collected armored fish of the Ohio Shale. This is perhaps due to the massiveness of its dermal bones which resisted erosion longer than the thinner and more delicate elements of other genera. Classification: Animalia, Chordata, Vertebrata, Placodermi, Arthrodira, Dunkleosteidae Stratigraphy: Cleveland Shale Member, upper Ohio Shale, Famennian Stage, upper Upper Devonian Locality: northeastern Ohio, USA See info. at: <a href="https://en.wikipedia.org/wiki/Dunkleosteus" rel="nofollow">en.wikipedia.org/wiki/Dunkleosteus</a> |
| Date | |
| Source | Model of Dunkleosteus terrelli (fossil placoderm) (Late Devonian; Cleveland, Ohio, USA) 1 |
| Author | James St. John |
Licensing
- 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@N05/34189080296 (archive). It was reviewed on 7 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:03, 7 December 2019 | | 962 × 468 (325 KB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
File usage
The following page uses this file:
_(Late_Devonian;_Cleveland,_Ohio,_USA)_1_(34189080296).jpg){kind=link}