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.

Fossil content
The following fossils have been reported from the formation:

Insects

 * Calandrites hindsi
 * ?Calandrites ursorum
 * ?Carabites arapahoensis
 * Curculio beeklyi
 * Ophryastites hendersoni

Flora

 * Allantodiopsis erosa
 * Ampelopsis acerifolia
 * Betula stevensoni
 * Carya antiquorum
 * 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