Tatman Formation
Tatman Formation | |
---|---|
Stratigraphic range: Ypresian (Lostcabinian) ~ | |
Type | Formation |
Lithology | |
Primary | Shale |
Location | |
Coordinates | 44°12′N 108°36′W / 44.2°N 108.6°W |
Approximate paleocoordinates | 49°00′N 91°30′W / 49.0°N 91.5°W |
Region | Wyoming |
Country | United States |
Extent | Bighorn Basin |
The Tatman Formation is a Wasatchian geologic formation in Wyoming. It preserves fossils dating back to the Ypresian stage of the Eocene period.[1]
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 | |||||||||
Volcanic | Yes | No | Yes | No | Yes | No | Yes | No | Yes | No |
See also
References
- ^ a b Tatman Formation at Fossilworks.org
- ^ Wing et al., 1995
Bibliography
- Wing, S. L.; Alroy, J.; Hickey, L. J. (1995), "Plant and mammal diversity in the Paleocene to Early Eocene of the Bighorn Basin", Palaeogeography, Palaeoclimatology, Palaeoecology, 115 (1–4): 117–155, Bibcode:1995PPP...115..117W, doi:10.1016/0031-0182(94)00109-L