File:Phacops rana crassituberculata (fossil trilobites) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 5 (48328341852).jpg
Original file (3,724 × 2,981 pixels, file size: 5.89 MB, MIME type: image/jpeg)
Captions
Captions
Summary[edit]
_(Silica_Formation,_Middle_Devonian;_quarry_northwest_of_Paulding,_Ohio,_USA)_5_(48328341852).jpg&action=edit§ion=1){kind=link}
| Description |
Phacops rana crassituberculata Stumm, 1953 - fossil trilobites from the Devonian of Ohio, USA. (Dave Mielke collection; temporary public display, Ohio Geological Survey, Columbus, Ohio, USA) This fossil is also known as Eldredgeops rana crassituberculata. Trilobites are extinct marine arthropods. They first appear in Lower Cambrian rocks and the entire group went extinct at the end of the Permian. Trilobites had a calcitic exoskeleton and nonmineralizing parts underneath (legs, gills, gut, etc.). The calcite skeleton is most commonly preserved in the fossil record, although soft-part preservation is known in some trilobites (Ex: Burgess Shale and Hunsruck Slate). Trilobites had a head (cephalon), a body of many segments (thorax), and a tail (pygidium). Molts and carcasses usually fell apart quickly - most trilobite fossils are isolated parts of the head (cranidium and free cheeks), individual thoracic segments, or isolated pygidia. The name "trilobite" was introduced in 1771 by Johann Ernst Immanuel Walch and refers to the tripartite division of the trilobite body - it has a central axial lobe that runs longitudinally from the head to the tail, plus two side lobes (pleural lobes). Seen here are famous trilobites whose remains are relatively common in the Middle Devonian-aged Silica Formation of northeastern Ohio. These are Phacops rana crassituberculata (also known as Eldredgeops, an unnecessary genus name based on taxonomic oversplitting). Phacops trilobite fossils occur with other typical Middle Paleozoic shallow marine invertebrates: brachiopods, bryozoans, crinoids, and corals. Classification: Animalia, Arthropoda, Trilobita, Polymerida, Phacopidae Stratigraphy: Silica Formation (also known as the Silica Shale), Givetian Stage, upper Middle Devonian Locality: quarry northwest of the town of Paulding, northern Paulding County, northwestern Ohio, USA (41° 10' 52.55" North latitude, 84° 37' 19.32" West longitude) See info. at: <a href="https://en.wikipedia.org/wiki/Trilobite" rel="noreferrer nofollow">en.wikipedia.org/wiki/Trilobite</a> and <a href="https://en.wikipedia.org/wiki/Phacops_rana" rel="noreferrer nofollow">en.wikipedia.org/wiki/Phacops_rana</a> |
| Date | |
| Source | Phacops rana crassituberculata (fossil trilobites) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 5 |
| Author | James St. John |
Licensing[edit]
_(Silica_Formation,_Middle_Devonian;_quarry_northwest_of_Paulding,_Ohio,_USA)_5_(48328341852).jpg&action=edit§ion=2){kind=link}
- 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@N05/48328341852 (archive). It was reviewed on 18 October 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 | 02:40, 18 October 2019 | | 3,724 × 2,981 (5.89 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
_(Silica_Formation,_Middle_Devonian;_quarry_northwest_of_Paulding,_Ohio,_USA)_5_(48328341852).jpg&oldid=722607425){kind=link}