File:Fossil bird track (Lararmie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, Colorado, USA) 5.jpg
Original file (2,309 × 1,866 pixels, file size: 2.96 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionFossil bird track (Lararmie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, Colorado, USA) 5.jpg |
English: Fossil bird footprint in sandstone in the Cretaceous of Colorado, USA.
Trace fossils are any indirect evidence of ancient life. They refer to features in rocks that do not represent parts of the body of a once-living organism. Traces include footprints, tracks, trails, burrows, borings, and bitemarks. Body fossils provide information about the morphology of ancient organisms, while trace fossils provide information about the behavior of ancient life forms. Interpreting trace fossils and determination of the identity of a trace maker can be straightforward (for example, a dinosaur footprint represents walking behavior) or not. Sediments that have trace fossils are said to be bioturbated. Burrowed textures in sedimentary rocks are referred to as bioturbation. Trace fossils have scientific names assigned to them, in the same style & manner as living organisms or body fossils. The fossil bird footprint seen here is on the underside of a vertically-oriented, nonmarine sandstone bed in Golden, Colorado. The rocks at this site were tectonically tilted during the Laramide Orogeny, an ancient mountain-building event that resulted in the formation of the true Rocky Mountains. Stratigraphy: Laramie Formation, Maastrichtian Stage, upper Upper Cretaceous Locality: outcrop along Triceratops Trail, Parfet Prehistoric Preserve, southern side of the town of Golden, Colorado, USA (~vicinity of 39° 44' 35.24" North latitude, 105° 13’ 09.69" West longitude) |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/52511333481/ |
Author | James St. John |
Licensing
[edit]- 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@N05/52511333481. It was reviewed on 21 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 November 2022
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:23, 21 November 2022 | 2,309 × 1,866 (2.96 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52511333481/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 4,159 px |
---|---|
Height | 1,879 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 200 dpi |
Vertical resolution | 200 dpi |
Software used | Adobe Photoshop Elements 20.0 (Macintosh) |
File change date and time | 01:20, 20 November 2022 |
Exif version | 2.31 |
Color space | sRGB |
Unique ID of original document | E1CCDD54EB8F9EEB347D80390764FC41 |
Date and time of digitizing | 14:00, 31 December 1969 |
Date metadata was last modified | 20:20, 19 November 2022 |