File:Cyrtaspidichthys sculptus fossil fish (Beartooth Butte Formation, Lower Devonian; Beartooth Butte, Beartooth Mountains, Wyoming, USA) 2 (27354038286).jpg
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Summary
| Description |
Cyrtaspidichthys sculptus (Bryant, 1933) fossil fish from the Devonian of Wyoming, USA. (CMC VP collection, Cincinnati Museum of Natural History and Science, Cincinnati Museum Center, Cincinnati, Ohio, USA) This species is also known as Crytaspis sculptus and Protaspis sculptus. This Devonian fossil jawless fish from Wyoming is an agnathan with a bony exoskeleton. All agnathans are jawless - they represent the oldest-known, ancestral fish group. Agnathans are still alive today and include the hagfish. Early agnathans with bony exoskeletons are often called ostracoderms. The fossil shown here is a rare specimen of Cyrtaspidichthys - the dorsal (upperside) surface is exposed. Cyrtaspidichthys has a dorso-ventrally compressed body, consistent with a benthic swimming lifestyle. Classification: Animalia, Chordata, Vertebrata, Agnatha, Pteraspidomorphi, Heterostraci, Pteraspidiformes, Protaspididae Stratigraphy: Beartooth Butte Formation, Lower Devonian Locality: Beartooth Butte, Beartooth Mountains, Park County, northwestern Wyoming, USA |
| Date | |
| Source | Cyrtaspidichthys sculptus fossil fish (Beartooth Butte Formation, Lower Devonian; Beartooth Butte, Beartooth Mountains, Wyoming, 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@N05/27354038286 (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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:58, 7 December 2019 | | 2,839 × 2,398 (5.59 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
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