| Alsea Formation(expression, geology, geohistory, unit, oregon) |
| Bushnell Rock Formation(expression, geology, geohistory, unit, oregon) |
| Camas Valley Formation(expression, geology, geohistory, unit, oregon) |
| Clarno Formation(expression, geology, geohistory, unit, oregon) |
| Coaledo Formation(expression, geology, geohistory, unit, oregon) |
| Cowlitz Formation(expression, geology, geohistory, unit, oregon) |
| Ekgmowechashala(expression, geology, geohistory, unit, oregon) |
| Eugene Formation(expression, geology, geohistory, unit, oregon) |
| John Day Fossil Beds National Monument(expression, geology, geohistory, unit, oregon) |
| Lookingglass Formation(expression, geology, geohistory, unit, oregon) |
| Nestucca Formation(expression, geology, geohistory, unit, oregon) |
| Pilot Rock(expression, geology, geohistory, unit, oregon) |
| Pittsburg Bluff Formation(expression, geology, geohistory, unit, oregon) |
| Scotts Mills Formation(expression, geology, geohistory, unit, oregon) |
| Tenmile Formation(expression, geology, geohistory, unit, oregon) |
| Torreya clarnensis(expression, geology, geohistory, unit, oregon) |
| Tyee Formation(expression, geology, geohistory, unit, oregon) |
| Umpqua Group(expression, geology, geohistory, unit, oregon) |
| White Tail Ridge Formation(expression, geology, geohistory, unit, oregon) |
| Yaquina Formation(expression, geology, geohistory, unit, oregon) |