Cuchara Formation | |
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Stratigraphic range: Wasatchian ~ | |
Along Highway 12 just north of La Veta | |
Type | Formation |
Location | |
Coordinates | 37°48′N 105°06′W / 37.8°N 105.1°W |
Approximate paleocoordinates | 42°12′N 89°24′W / 42.2°N 89.4°W |
Region | Colorado |
Country | ![]() |
Extent | Raton Basin |
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]
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) |
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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 | ||
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Copelemur | ![]() |
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Coryphodon | ![]() |
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Diacodexis | ![]() |
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Homogalax | ![]() |
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Oxyaena | ![]() |
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Paramys | ![]() |
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Primates | ![]() |
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Birds | ![]() |
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Reptiles | ![]() |
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Fish | ![]() |
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Insects | ![]() |
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Flora | ![]() |
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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 Cuchara Formation at Fossilworks.org
- ^ a b c Robinson, 1963
Bibliography
- Robinson, P (1963), University of Colorado Studies, vol. 1