File:Neuropteris flexuosa fossil plant (Mazon Creek Lagerstatte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) (14910119354).jpg
_(14910119354).jpg){kind=link}
_(14910119354).jpg&action=edit&redlink=1){kind=link}
Original file (4,000 × 3,000 pixels, file size: 3.79 MB, 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. |
_(14910119354).jpg){kind=link}
Summary
| Description |
Neuropteris flexuosa Sternberg, 1823 fossil plant from the Pennsylvanian of Illinois, USA (public display, FMNH PF 46204, Field Museum of Natural History, Chicago, Illinois, USA). One of the most remarkable soft-bodied fossil deposits (lagerstätten) on Earth is the Pennsylvanian-aged Mazon Creek Lagerstätte near Chicago, Illinois. In the Mazon Creek area, the Francis Creek Shale consists of concretionary gray shales. The Francis Creek concretions are composed of argillaceous ironstone, and can be fossiliferous or nonfossiliferous. The fossiliferous concretions contain land plants and terrestrial & marine animals, including nonmineralizing organisms. This is Neuropteris flexuosa, a fossil seed fern. Seed ferns are not true ferns. Seed ferns were odd, usually arborescent (tree-like) plants that had woody trunks, large fronds bearing fern-like foliage, and reproduced using seeds (not the spores of true ferns). Classification: Plantae, Pteridospermophyta, Medullosales Stratigraphy: Mazon Creek Lagerstätte, Francis Creek Shale Member, Carbondale Formation, Desmoinesian Stage (= Westphalian D), upper Middle Pennsylvanian Locality: coal mine dump pile near Essex, northern Illinois, USA |
| Date | |
| Source | Neuropteris flexuosa fossil plant (Mazon Creek Lagerstatte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) |
| 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 jsj1771 at https://www.flickr.com/photos/47445767@N05/14910119354. It was reviewed on 21 November 2014 by FlickreviewR 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 | 19:42, 21 November 2014 | | 4,000 × 3,000 (3.79 MB) | Animalparty | Transferred from Flickr via Flickr2Commons |
File usage
Global file usage
The following other wikis use this file:
- Usage on es.wikipedia.org
- Usage on pl.wikipedia.org
_(14910119354).jpg){kind=link}