North Fork of Owl Creek (UW V-77026)
Basic information
Sample name: North Fork of Owl Creek (UW V-77026)
Reference: J. G. Eaton. 1985. Paleontology and correlation of the Eocene Tepee Trail and Wiggins Formations in the North Fork of Owl Creek area, southeastern Absaroka Range, Hot Springs County, Wyoming. Journal of Vertebrate Paleontology 5(4):345-370 [ER 4126]
Geography
Country: United States
State: Wyoming
County: Hot Springs
Coordinate: 43.78° N, -109.11° W
Coordinate basis: estimated from map
Formation: Wiggins
Time interval: Middle Eocene
Zone: Uintan
Section: Owl Creek
Unit number: 2
Unit order: below to above
Ma: 45.25
Age basis: AEO
Geography comments: from the upper Wiggins Formation near the top of the section and thought be equivalent to Uinta B
within a reversed zone said to be in the upper part of "the Anomaly 21 Chron" (chron 21r)
there is a K-Ar date near the base of the Wiggins Formation of 46.0 ± 1.7 Ma, and another in the underlying upper Tepee Trail Formation of 52.5 ± 2.7 Ma
both strata are within the reversed zone, and the errors are too large to identify it with certainty
within a reversed zone said to be in the upper part of "the Anomaly 21 Chron" (chron 21r)
there is a K-Ar date near the base of the Wiggins Formation of 46.0 ± 1.7 Ma, and another in the underlying upper Tepee Trail Formation of 52.5 ± 2.7 Ma
both strata are within the reversed zone, and the errors are too large to identify it with certainty
Environment
Lithology: not described
Habitat comments: the formation has "light color" and is of "conglomeratic-highly tuffaceous nature" but the site's lithology is not discussed
Methods
Life forms: carnivores,rodents,ungulates
Sample size: 27 specimens
Museum: University of Wyoming
Sampling comments: collecting methods are not detailed
Metadata
Sample number: 4569
Contributor: John Alroy
Enterer: John Alroy
Modifier no: John Alroy
Created: 2024-12-07 04:42:12
Modified: 2025-01-04 04:04:32
Abundance distribution
6 species
3 singletons
total count 27
geometric series index: 14.8
Fisher's α: 2.392
geometric series k: 0.5818
Hurlbert's PIE: 0.6111
Shannon's H: 1.2711
Good's u: 0.8889
Each square represents a species. Square sizes are proportional to counts.
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Register
| †Paramys cf. copei | 1 | |
| †Thisbemys cf. corrugatus | 1 | |
| Miocyon sp. | 1 | |
| Bryant (1992): "? Uintacyon sp." | ||
| †Hyopsodus uintensis | 15 | |
| Epihippus uintensis = †Duchesnehippus intermedius | 6 | |
| †Colodon cf. woodi | 3 | |