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 ~55.8–50 Ma | |
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![]() 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
- Robinson, P. 1963. University of Colorado Studies, .. 1;
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