File:Teleoceras major (fossil barrel-bodied rhino) in fossiliferous volcanic tuff (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 12.jpg
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Summary
DescriptionTeleoceras major (fossil barrel-bodied rhino) in fossiliferous volcanic tuff (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 12.jpg |
English: Teleoceras major Hatcher, 1894 - fossil barrel-bodied rhinoceros in fossiliferous volcanic tuff in the Miocene of Nebraska, USA.
Volcanic tuff is a fine-grained, clastic-textured, extrusive igneous rock - basically a solidified volcanic ash deposit. Volcanic tuff can be well to poorly indurated / lithified. This exposure is at Nebraska's Ashfall Fossil Beds. The ash is derived from the Bruneau-Jarbidge Volcanic Field in southwestern Idaho's Snake River Plain. The wind-blown ash buried a vertebrate-rich biota at what was originally a Miocene waterhole. The skeleton seen here is a barrel-bodied rhino, Teleoceras major, which is a common species at Ashfall Fossil Beds. From on-site info.: ADULT MALE RHINO "Dr. Marie" Estimated Age: 10-12 years (All permanent teeth in wear). The bones of this individual show well developed bone disease, which is related to severe lung damage. The most abundant large animal discovered in the volcanic ash bed is an extinct rhinoceros with a body shape similar to today's hippopotamus. Like hippos, barrel-bodied rhinos may have wallowed in the waterholes that dotted the ancient savannas of the Great Plains. Unlike modern-day rhinos, which are primarily solitary creatures, the Nebraska rhino probably was a social species that formed herds. By studying the age and sex of more than 100 skeletons from Ashfall, paleontologists concluded that Teleoceras males (with large tusks) may have defended "harems" of females (with small tusks) and their calves. Young adult male skeletons are remarkably rare in the ash bed, suggesting that "bachelor males" may have been excluded from the breeding herds and forced to live elsewhere. Adult males were only about 3.5 feet tall at the shoulder but were over 10 feet long and 10 feet in circumference around the belly. Females measured 20% smaller. [Teleoceras - ] the name means "perfect horn" and refers to the fact that both mle and female skulls have rough bumps near the end of their nasal bones, proving that they had a true horn in life. Classification: Animalia, Chordata, Vertebrata, Mammalia, Perissodactyla, Rhinocerotidae Stratigraphy: Cap Rock Member, Ash Hollow Formation, Ogallala Group, Miocene, 11.83 Ma Locality: Hubbard Rhino Barn, Ashfall Fossil Beds State Historical Park, northeastern Nebraska, USA Info. at: en.wiki.x.io/wiki/Teleoceras and en.wiki.x.io/wiki/Ashfall_Fossil_Beds |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/52278586420/ |
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@N05/52278586420. It was reviewed on 15 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
15 November 2022
Items portrayed in this file
depicts
5 August 2011
0.01666666666666666666 second
5.6
105 millimetre
400
image/jpeg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:17, 12 November 2022 | 3,008 × 2,000 (4.43 MB) | Ser Amantio di Nicolao | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52278586420/ with UploadWizard |
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Date and time of data generation | 13:18, 5 August 2011 |
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Horizontal resolution | 300 dpi |
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Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 03:50, 11 August 2022 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 13:18, 5 August 2011 |
Meaning of each component |
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File source | Digital still camera |
Scene type | A directly photographed image |
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White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 157 mm |
Scene capture type | Standard |
Scene control | None |
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Serial number of camera | 200638ad |
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Date metadata was last modified | 23:50, 10 August 2022 |
Unique ID of original document | B024080CA2B21D419618259616054C2C |
IIM version | 32,767 |