Spatial Coverage
- Jackson County (Colo.)5
- Moffat County5
- Big Horn County4
- Emery County (Utah)4
- Fort Union Formation.4
- Garfield County (Utah)4
- Hants4
- Hants (N.S.)4
- Hants.4
- Kaiparowits Plateau4
- Oklahoma4
- Perry County4
- Perry County.4
- Rio Blanco County4
- Schuylkill County.4
- Columbia County3
- Columbia County.3
- Converse County3
- Johnson County.3
- Kentucky3
