Coalmont Formation

The Coalmont Formation (Tmc) is a geologic formation that outcrops in the North Park intermountain basin in Colorado. It contains fossil plants and coal layers dating back to the Paleogene period.Coalmont Formation at Fossilworks.org

Fossil content

The following fossils have been reported from the formation:

Insects

Calandrites hindsiCockerell, 1916 ?Calandrites ursorum ?Carabites arapahoensisCockerell, 1918 Curculio beeklyi Ophryastites hendersoni

Flora

Allantodiopsis erosa Ampelopsis acerifolia Betula stevensoni Carya antiquorumBrown, 1962 Cercidiphyllum arcticum Cissus marginata Eucommia serrata Fraxinus eocenica Glyptostrobus nordenskioldi Hydromystria expansa Lastrea goldiana Laurophyllum perseanum Laurus socialis Lygodium coloradense Metasequoia occidentalis Mimosites coloradensis Nordenskioldia borealis Persea brossiana Platanus nobilis P. raynoldsi Prunus corrugis Pterocarya hispida Quercus greenlandica Q. sullyi ?Robinia wardi Sassafras thermale Sparganium antiquum

Wasatchian correlations + Wasatchian correlations in North America Formation 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 RiverUintaPiceanceColorado PlateauWind RiverGreen RiverBighorn 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 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 Coalmont, Colorado List of fossiliferous stratigraphic units in Colorado Paleontology in Colorado

References

Bibliography