Horse Hill Low: Chadronian, Nebraska
collected by D. J. Ehret, B. J. MacFadden 2001
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Peltosaurus sp.
Cope 1873
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ElShafie 2024 | ||||||
Reptilia
- Testudines
- Testudinidae
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Stylemys nebrascensis
Leidy 1851
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Gopherus laticuneus
(Cope 1873)
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see common names |
Geography
Country: | United States | State/province: | Nebraska | County: | Sioux |
Coordinates: | 42.9° North, 103.6° West (view map) | ||||
Paleocoordinates: | 44.2° North, 94.8° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Chadronian | ||
Age range of interval: | 37.00000 - 33.90000 m.y. ago |
Stratigraphy
Geological group: | White River | Formation: | Chadron | Member: | Big Cottonwood Creek |
Stratigraphic resolution: | member | ||||
Stratigraphy comments: "from the 'turtle-oreodont' zone in the boundary area between the Chadron Formation and the Orellan [sic] member of the Brule Formation" (assumed to be from the Chadron because locality is "low") |
Lithology and environment
Primary lithology: | "siliciclastic" |
Environment: | fluvial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection | ||
Reason for describing collection: | paleoecologic analysis | ||
Museum repositories: | FLMNH | ||
Collectors: | D. J. Ehret, B. J. MacFadden | Collection dates: | 2001 |
Metadata
Also known as: | FLMNH NE 008; Sand Creek Ranch | ||
Database number: | 99593 | ||
Authorizer: | J. Alroy, P. Holroyd | Enterer: | J. Alroy, P. Holroyd | Research group: | vertebrate |
Created: | 2010-11-16 12:57:27 | Last modified: | 2010-11-15 19:57:27 |
Access level: | the public | Released: | 2010-11-16 12:57:27 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
34254. | D. J. Ehret. 2007. Skeletochronology: a method for determing the individual age and growth of modern and fossil tortoises (Reptilia: Testudines). Bulletin of the Florida Museum of Natural History 47(2):49-72 [J. Alroy/J. Alroy] |
Secondary references:
87093 | S. J. ElShafie. 2024. Body size estimation from isolated fossil bones reveals deep time evolutionary trends in North American lizards. PLoS ONE 19(1:e0296318):1-25 [P. Holroyd/P. Holroyd/P. Holroyd] |