Tatman Formation
The Tatman Formation is a Wasatchian geologic formation in Wyoming. It preserves fossils dating back to the Ypresian stage of the Eocene period.[1]
| Tatman Formation | |
|---|---|
| Stratigraphic range: Ypresian (Lostcabinian) ~ | |
| Type | Formation |
| Lithology | |
| Primary | Shale |
| Location | |
| Coordinates | 44.2°N 108.6°W |
| Approximate paleocoordinates | 49.0°N 91.5°W |
| Region | Wyoming |
| Country | United States |
| Extent | Bighorn Basin |
Tatman Formation (the United States) Tatman Formation (Wyoming) | |
Fossil content
The following fossils have been recovered from the formation:[1][2]
Flora
- Allantoidiopsis erosa
- Cercidiphyllum genetrix
- Cnemidaria magna
- Dombeya novimundi
- Eugenia americana
- Lygodium kaulfussi
- Platanus wyomingensis
- Platycarya castaneopsis
- Populus meigsii
- Salvinia preauriculata
- Thelypteris iddingsii
- Zingiberopsis isonervosa
- Alnus sp.
- Equisetum sp.
- aff. Typha sp.
- Alismataceae indet.
- Monocotyledoneae indet.
Wasatchian correlations
| Formation | Wasatch | DeBeque | Claron | Indian Meadows | Pass Peak | Tatman | Willwood | Golden Valley | Coldwater | Allenby | Kamloops | Ootsa Lake | Margaret | Nanjemoy | Hatchetigbee | Tetas de Cabra | Hannold Hill | Coalmont | Cuchara | Galisteo | San Jose | Ypresian (IUCS) • Itaboraian (SALMA) Bumbanian (ALMA) • Mangaorapan (NZ) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basin | Powder River Uinta Piceance Colorado Plateau Wind River Green River Bighorn | Piceance | Colorado Plateau | Wind River | Green River | Bighorn | Williston | Okanagan | Princeton | Buck Creek | Nechako | Sverdrup | Potomac | GoM | Laguna Salada | Rio Grande | North Park | Raton | Galisteo | San Juan | ||
| Country | United States | Canada | United States | Mexico | United States | |||||||||||||||||
| Copelemur | ||||||||||||||||||||||
| Coryphodon | ||||||||||||||||||||||
| Diacodexis | ||||||||||||||||||||||
| Homogalax | ||||||||||||||||||||||
| Oxyaena | ||||||||||||||||||||||
| Paramys | ||||||||||||||||||||||
| Primates | ||||||||||||||||||||||
| Birds | ||||||||||||||||||||||
| Reptiles | ||||||||||||||||||||||
| Fish | ||||||||||||||||||||||
| Insects | ||||||||||||||||||||||
| Flora | ||||||||||||||||||||||
| Environments | Alluvial-fluvio-lacustrine | Fluvial | Fluvial | Fluvio-lacustrine | Fluvial | Lacustrine | Fluvio-lacustrine | Deltaic-paludal | Shallow marine | Fluvial | Shallow marine | Fluvial | Fluvial | Wasatchian volcanoclastics Wasatchian fauna Wasatchian flora | ||||||||
| Volcanic | Yes | No | Yes | No | Yes | No | Yes | No | Yes | No | ||||||||||||
See also
References
- Tatman Formation at Fossilworks.org
- Wing et al., 1995
Bibliography
- Wing, S. L.; J. Alroy, and L. J. Hickey. 1995. Plant and mammal diversity in the Paleocene to Early Eocene of the Bighorn Basin. Palaeogeography, Palaeoclimatology, Palaeoecology 115. 117–155. .
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