Cypress Hills Formation
| Cypress Hills Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | current erosional surface |
| Overlies | Ravenscrag Formation |
| Thickness | up to 80 metres (260 ft) |
| Lithology | |
| Primary | Gravel, sand |
| Other | Conglomerate, sandstone, marl |
| Location | |
| Coordinates | 49°35′38″N 108°47′46″W / 49.594°N 108.796°W |
| Region | Alberta Saskatchewan |
| Country | Canada |
| Type section | |
| Named for | Cypress Hills |
| Named by | M.Y. Williams and W.S. Dyer, 1930 |
The Cypress Hills Formation is a stratigraphic unit of middle Eocene to early Miocene age in the Western Canada Sedimentary Basin. It is named for the Cypress Hills of southeastern Alberta and southwestern Saskatchewan and was first described from outcrops on the slopes of the Cypress Hills in 1930. It is known for preserving a wealth of vertebrate fossils.