Cuchara Formation
The Cuchara Formation is a geologic formation in Colorado. It preserves fossils dating back to the Ypresian stage of the Eocene period, or Wasatchian in the NALMA classification.[1]
| Cuchara Formation | |
|---|---|
| Stratigraphic range: Wasatchian ~ | |
![]() Along Highway 12 just north of La Veta | |
| Type | Formation |
| Location | |
| Coordinates | 37.8°N 105.1°W |
| Approximate paleocoordinates | 42.2°N 89.4°W |
| Region | Colorado |
| Country | |
| Extent | Raton Basin |
![]() Cuchara Formation (the United States) ![]() Cuchara Formation (Colorado) | |
Fossil content
The following fossils have been reported from the formation:[1]
Mammals
- Ferae
- Perissodactyla
- Placentalia
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 | ||||||||||||||||||||||
| 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 | ||||||||||||
References
- Cuchara Formation at Fossilworks.org
- Robinson, 1963
Bibliography
- . 1963. University of Colorado Studies, .. 1;
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