File:Ctenacanthus formosus (fossil shark spine) (Pennsylvanian; Kansas or Nebraska, USA) 1.jpg
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Summary
| Description |
English: Ctenacanthus formosus Newberry, 1873 - fossil shark spine from the Pennsylvanian of Kansas or Nebraska, USA. (public display, Nebraska State Museum of Natural History, Lincoln, Nebraska, USA)
The Pennsylvanian-aged shark spine shown above has been identified as Ctenacanthus formosus. However, the species was originally described from Mississippian rocks. The spine was originally located along the anterior margin of the shark's dorsal fin. Classification: Animalia, Chordata, Vertebrata, Chondrichthyes, Elasmobranchii, Ctenacanthiformes, Ctenacanthidae Stratigraphy: possibly the Bonner Springs Formation (Bonner Springs Shale), Upper Pennsylvanian Locality: unrecorded/undisclosed site in Nebraska or Kansas, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/34115196432/ |
| 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@N05/34115196432. It was reviewed on 10 March 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:52, 10 March 2020 | | 3,624 × 1,328 (3.67 MB) | Ser Amantio di Nicolao | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/34115196432/ with UploadWizard |
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