File:Kallidecthes_richardsoni_fossil_shrimp_(Mazon_Creek_Lagerstatte,_Francis_Creek_Shale,_Middle_Pennsylvanian;_coal_mine_dump_pile_near_Essex,_northern_Illinois,_USA).jpg
From Wikipedia, the free encyclopedia
Original file (1,964 × 1,551 pixels, file size: 1.05 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. |
Summary
DescriptionKallidecthes richardsoni fossil shrimp (Mazon Creek Lagerstatte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA).jpg |
Kallidecthes richardsoni Schram, 1969 fossil shrimp from the Pennsylvanian of Illinois, USA (public display, FMNH PE 37598, 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 Kallidecthes richardsoni specimen is a laterally compressed fossil shrimp in a Mazon Creek concretion. Classification: Animalia, Arthropoda, Crustacea, Malacostraca, Hoplocarida, Aeschronectida 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 | Kallidecthes richardsoni fossil shrimp (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@N05/15342557327. It was reviewed on 21 November 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 November 2014
Items portrayed in this file
depicts
some value
21 August 2010
0.01666666666666666666 second
4.9
18.6 millimetre
250
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 | 1,964 × 1,551 (1.05 MB) | Animalparty | Transferred from Flickr via Flickr2Commons |
File usage
Global file usage
The following other wikis use this file:
- Usage on ja.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on zh.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/4.9 |
ISO speed rating | 250 |
Date and time of data generation | 17:13, 21 August 2010 |
Lens focal length | 18.6 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 14:58, 13 October 2014 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:13, 21 August 2010 |
Meaning of each component |
|
Image compression mode | 3 |
Shutter speed | 5.90625 |
APEX aperture | 4.59375 |
Exposure bias | 0 |
Maximum land aperture | 4.59375 APEX (f/4.91) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Supported Flashpix version | 1 |
Image width | 1,964 px |
Image height | 1,551 px |
Date metadata was last modified | 10:58, 13 October 2014 |
IIM version | 2 |