Dolus Hill
Basic information
Sample name: Dolus Hill
Reference: C. G. Richbourg, L. J. Jackson, K. R. Chamberlain, I. M. Miller, K. R. Johnson, and E. D. Currano. 2025. Leaf functional traits, insect herbivory, and fungal damage on early Eocene leaf compression fossils, Dolus Hill, Wyoming. American Journal of Botany 112(e70033):1-19 [ER 4422]
Geography
Country: United States
State: Wyoming
Coordinate: 43.34° N, -107.79° W
Latlng basis: estimated from map
Scale: quarry
Formation: Wind River
Time interval: Early Eocene
Ma: 52.22
Age basis: other
Geography comments: "approximately 14.5 km northwest of Lysite" (coordinate estimated from Fig. 1)
"a tuffaceous sandstone" of "rough stratigraphic equivalence" 1 km away was dated using U-Pb analysis of zircon grains at 52.22 ± 0.21 Ma
"a tuffaceous sandstone" of "rough stratigraphic equivalence" 1 km away was dated using U-Pb analysis of zircon grains at 52.22 ± 0.21 Ma
Environment
Lithology: siltstone
Taphonomic context: overbank deposit
Habitat comments: the section includes "a series of stacked overbank deposits consisting of fining upward sandstone and siltstone beds" and the plant fossils are from "grey siltstone"
the "leaf layer is less than 1 m thick"
the "leaf layer is less than 1 m thick"
Methods
Life forms: leaves
Sampling methods: quarry
Sample size: 611 specimens
Years: 2020
Museum: Denver Museum of Nature & Science; University of Wyoming Geology Museum
Net or trap nights: 0
Basal area status: not applicable
Sampling comments: "bench quarries were excavated using hand tools"
Denver collections were made "in the early 1990s" and UWGM collections in 2020
Denver collections were made "in the early 1990s" and UWGM collections in 2020
Metadata
Sample no: 4709
Contributor no: John Alroy
Enterer: John Alroy
Created: 2025-11-23 04:05:47
Modified: 2025-11-23 04:05:47
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
18 species
1 singleton
total count 611
geometric series index: 20.7
Fisher's α: 3.479
geometric series k: 0.7951
Hurlbert's PIE: 0.8811
Shannon's H: 2.4115
Good's u: 0.9984
Register
| Angiospermae indet. WR007 | 148 | |
| Angiospermae indet. WR028 | 82 | |
| Populus cinnamomoides | 65 | |
| Symplocos incondita | 58 | |
| Apeiba improvisa | 56 | |
| Macginitiea gracilis | 40 | |
| Angiospermae indet. WR033 | 33 | |
| Angiospermae indet. WR029 | 29 | |
| Platanites raynoldsii | 22 | |
| Dombeya novimundi | 20 | |
| Macginitiea rannii | 14 | |
| Angiospermae indet. WR032 | 10 | |
| Angiospermae indet. WR031 | 9 | |
| Juglandaceae indet. WR035 | 9 | |
| Angiospermae indet. WR027 | 7 | |
| Angiospermae indet. WR034 | 5 | |
| Angiospermae indet. WR030 | 3 | |
| Rhus sp. | 1 | |
| cf. | ||