USNM locality no. 41352
Basic information
Sample name: USNM locality no. 41352
Reference: P. Wilf. 2000. Late Paleocene-early Eocene climate changes in southwestern Wyoming: Paleobotanical analysis. Geological Society of America Bulletin 112(2):292-307 [ER 4412]
Geography
Country: United States
State: Wyoming
County: Sweetwater
Coordinate: 45.6656° N, -108.264° W
Latlng basis: based on nearby landmark
Scale: quarry
Formation: Wasatch
Time interval: Early Eocene
Section: 4412
Ma: 52.8
Age basis: other
Geography comments: from above the Sourdough 2 coal, which is "42 m above the Tipton Buttes faunal locality" (coordinate based on Tipton)
from the uppermost Ramsey Ranch Member of the Wasatch Formation
tentatively assigned to the earliest Lostcabinian and correlated with a 52.8 Ma level in the Bighorn Basin
from the uppermost Ramsey Ranch Member of the Wasatch Formation
tentatively assigned to the earliest Lostcabinian and correlated with a 52.8 Ma level in the Bighorn Basin
Environment
Lithology: not described
Habitat comments: lithology is not discussed
Methods
Life forms: leaves
Sample size: 802 specimens
Museum: USNM
Net or trap nights: 0
Basal area status: not applicable
Metadata
Sample no: 4695
Contributor no: John Alroy
Enterer: John Alroy
Created: 2025-11-21 01:44:38
Modified: 2025-11-21 01:44:38
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
21 species
5 singletons
total count 802
geometric series index: 33.9
Fisher's α: 3.948
geometric series k: 0.7411
Hurlbert's PIE: 0.693
Shannon's H: 1.6349
Good's u: 0.9938
Register
| Alnus sp. | 156 | |
| Apocynaceae indet. | 400 | |
| Lauraceae indet. 2 | 3 | |
| Sloanea sp. | 1 | |
| aff. | ||
| Hovenia cf. oregonensis | 92 | |
| Dombeya novimundi | 8 | |
| Angiospermae indet. RR48 | 6 | |
| "dicot" | ||
| Populus wyomingiana | 48 | |
| Allophylus flexifolia | 39 | |
| Cinnamomophyllum sp. | 19 | |
| Angiospermae indet. RR37 | 5 | |
| "dicot" | ||
| Stillingia casca | 1 | |
| Angiospermae indet. RR31 | 6 | |
| "dicot" | ||
| Magnoliaceae indet. | 5 | |
| cf. | ||
| Syzygioides americana | 3 | |
| Angiospermae indet. RR88 | 3 | |
| "dicot" | ||
| Angiospermae indet. RR63 | 2 | |
| "dicot" | ||
| Angiospermae indet. RR95 | 2 | |
| "dicot" | ||
| Angiospermae indet. RR65 | 1 | |
| "dicot" | ||
| Angiospermae indet. RR66 | 1 | |
| "dicot" | ||
| Angiospermae indet. RR94 | 1 | |
| "dicot" | ||