| Arctomys Formation | |
|---|---|
| Stratigraphic range: Middle Cambrian ~ | |
| Type | Formation |
| Underlies | Waterfowl Formation |
| Overlies | Pika Formation |
| Thickness | Up to 336 metres (1,100 ft)[1] |
| Lithology | |
| Primary | Shale |
| Other | Dolomite, limestone |
| Location | |
| Coordinates | 51°57′35″N 116°55′16″W / 51.95972°N 116.92111°W |
| Region | Canadian Rockies |
| Country |  Canada |
| Type section | |
| Named for | Arctomys Peak |
| Named by | Charles Doolittle Walcott[2] |
The Arctomys Formation is a stratigraphic unit of late Middle Cambrian age. It is present on the western edge of the Western Canada Sedimentary Basin in the Canadian Rockies of Alberta and British Columbia.[3] It was named for Arctomys Peak near Mount Erasmus in Banff National Park by Charles Doolittle Walcott in 1920. Outcrops of the Arctomys can be seen in Banff and Jasper National Parks.[4]
- ^ Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba. Canadian Society of Petroleum Geologists, Calgary, 1423 p. on CD-ROM. ISBN 0-920230-23-7.
- ^ Walcott, C.D. 1920. Explorations and field work of the Smithsonian Institution in 1919. Smithsonian Institution Miscellaneous Collections, vol. 72, no. 1, p. 1-16.
- ^ Slind, O.L.; Andrews, G.D.; Murray, D.L.; Norford, B.S.; Paterson, D.F.; Salas, C.J.; Tawadros, E.E. (1994). "The Geological Atlas of the Western Canada Sedimentary Basin (Mossop, G.D. and Shetsen, I., compilers), Chapter 8: Middle Cambrian and Early Ordovician Strata of the Western Canada Sedimentary Basin". Archived from the original on 2016-07-01. Retrieved 2018-07-13.
- ^ Leckie, D.A. 2017. Rocks, ridges and rivers – Geological wonders of Banff, Yoho, and Jasper National Parks. Brokenpoplars, Calgary, Alberta, 217 pp. ISBN 978-0-9959082-0-8.