File:Diorama of the Burgess Shale Biota (Middle Cambrian) - sponges, arthropods (44691571505).jpg
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Summary
DescriptionDiorama of the Burgess Shale Biota (Middle Cambrian) - sponges, arthropods (44691571505).jpg |
The Middle Cambrian-aged Burgess Shale is the most famous fossil deposit on Earth. It is located near the town of Field in Yoho National Park, southeastern British Columbia, western Canada. The deposit is famous for its spectacular soft-bodied preservation - the organisms have had their appendages & internal organs preserved. Many tens of thousands of fossils have been collected from the Burgess Shale Formation over the last century. Including known, but unnamed species, and excluding known or demonstrable junior synonyms, the Burgess Shale biota totals at least ~280 species. Many claim that Charles Walcott discovered the Burgess Shale Lagerstätte (as soft-bodied fossil deposits are called by paleontologists) in 1909. However, it was actually discovered in 1886 or 1888 by Richard McConnell, based on anomalocarid appendage material from Mt. Stephen, in the Campsite Cliff Member of the Burgess Shale Formation. The main collecting localities have been two quarries (Walcott Quarry & Raymond Quarry) on the western side of the ridge connecting Mt. Field and Wapta Mountain a little north-northeast of Field. Numerous other smaller localities have been identified in the same area & for many, many kilometers to the south. Collecting at the Burgess Shale was most intense in 1910-1917 (Charles Walcott), 1925-1930 (Harvard’s Museum of Comparative Zoology), 1966-1967 (Geological Survey of Canada), and 1975-2000s (Royal Ontario Museum). Shown above is a diorama - a model-based reconstruction of the Burgess Shale. This is a public exhibit at the Nebraska State Museum of Natural History in Lincoln, Nebraska. |
Date | |
Source | Diorama of the Burgess Shale Biota (Middle Cambrian) - sponges, arthropods |
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@N05/44691571505 (archive). It was reviewed on 6 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 November 2018
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18 July 2011
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6.2 millimetre
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:44, 6 November 2018 | ![]() | 3,992 × 2,492 (8.01 MB) | commons>Lu Brito | Transferred from Flickr via #flickr2commons |
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ISO speed rating | 250 |
Date and time of data generation | 15:06, 18 July 2011 |
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Image title | |
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Height | 3,000 px |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 17:31, 28 October 2018 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 15:06, 18 July 2011 |
Meaning of each component |
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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 |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 13:31, 28 October 2018 |
Unique ID of original document | 0AB5D7DB1C017C686E11240CF84CD889 |