| details |
Late Paleocene |
|
Wyoming |
Ellis,M.S. et al. A summary of the U.S. Geological Survey 1999 Resource Assessment of selected coal zones in the Northern Rocky Mountains and Great Plains Region, Wyoming, Montana, and North Dakota. |
2002 |
| details |
Late Paleocene |
|
North Dakota |
Ellis,M.S. et al. A summary of the U.S. Geological Survey 1999 Resource Assessment of selected coal zones in the Northern Rocky Mountains and Great Plains Region, Wyoming, Montana, and North Dakota. |
2002 |
| details |
Late Paleocene |
|
Montana |
Ellis,M.S. et al. A summary of the U.S. Geological Survey 1999 Resource Assessment of selected coal zones in the Northern Rocky Mountains and Great Plains Region, Wyoming, Montana, and North Dakota. |
2002 |
| details |
Late Paleocene |
|
Canada(Saskatchewan) |
Frank,M.C. et al. Peat-forming history of the ancestral Souris mire (Palaeocene), Ravenscrag Formation, southern Saskatchewan, Canada. |
2004 |
| details |
Paleocene |
|
Canada(Saskatchewan) |
Frank,M.C. et al. Peat-forming history of the ancestral Souris mire (Palaeocene), Ravenscrag Formation, southern Saskatchewan, Canada. |
2004 |