File:Geodized Platystrophia ponderosa brachiopod in limestone (Corryville Member, McMillan Formation, Upper Ordovician; Flemingsburg South roadcut, Fleming County, Kentucky, USA) 1.jpg
Original file (3,932 × 2,731 pixels, file size: 5.24 MB, MIME type: image/jpeg)
Captions
Captions
Summary[edit]
_1.jpg&action=edit§ion=1){kind=link}
| Description |
English: Platystrophia ponderosa Foerste, 1909 - geodized fossil brachiopod in the Ordovician of Kentucky, USA.
This species is also known as Vinlandostrophia ponderosa. Brachiopods are sessile, benthic, filter-feeding, marine invertebrates. They first appear in Cambrian rocks and were abundant in Earth's oceans throughout the Paleozoic. They were also common in Mesozoic oceans, but are scarce in modern oceanic biotas. Brachiopods have two shells, called valves, that are usually calcareous (made of calcite - CaCO3 - calcium carbonate). Each shell of a brachiopod is bilaterally symmetrical, unlike each shell of a bivalve (clam). Seen here is a geodized brachiopod in fossiliferous limestone. The crystal-lined cavity represents a void in the original shell after burial. Fluids filled the void and precipitated calcite crystals (CaCO3 - calcium carbonate). Classification: Animalia, Brachiopoda, Articulata (a.k.a. Rhynchonelliformea), Orthida, Platystrophiidae Stratigraphy: Corryville Member, McMillan Formation/Grant Lake Formation, Maysvillian Stage, middle Cincinnatian Series, Upper Ordovician Locality: Flemingsburg South Outcrop - roadcut along Route 11, next to quarry entrance, south of the town of Flemingsburg, Fleming County, northeastern Kentucky, USA (28° 22’ 50.44” North latitude, 83° 44’ 54.93” West longitude) |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/48246974937/ |
| Author | James St. John |
Licensing[edit]
_1.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@N05/48246974937 (archive). It was reviewed on 4 March 2020 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 | 16:26, 4 March 2020 | | 3,932 × 2,731 (5.24 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/48246974937/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
_1.jpg&oldid=675731642){kind=link}