Isachsen Formation
| Isachsen Formation | |
|---|---|
| Stratigraphic range: Aptian ~ | |
| Type | Formation |
| Sub-units | Walker Island Member |
| Overlies | Christopher Formation |
| Location | |
| Coordinates | 76°06′N 109°00′W / 76.1°N 109.0°W |
| Approximate paleocoordinates | 71°30′N 20°30′W / 71.5°N 20.5°W |
| Region | Northwest Territories, Nunavut |
| Country | Canada |
  Isachsen Formation (Canada)  Isachsen Formation (Nunavut) | |
The Isachsen Formation is a geologic formation in the Northwest Territories and Nunavut. It preserves fossils of Polycotylidae indet., dating back to the Aptian stage of the Cretaceous period.
See also
[edit]- List of fossiliferous stratigraphic units in the Northwest Territories
- List of fossiliferous stratigraphic units in Nunavut
References
[edit]Further reading
[edit]- M. J. Vavrek, B. C. Wilhelm, E. E. Maxwell and H. C. E. Larsson. 2014. Arctic plesiosaurs from the Lower Cretaceous of Melville Island, Nunavut, Canada. Cretaceous Research 50:273-281
External links
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
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Categories:
- Geologic formations of the Northwest Territories
- Geologic formations of Nunavut
- Cretaceous Northwest Territories
- Cretaceous Nunavut
- Aptian Stage
- Fluvial deposits
- Paleontology in the Northwest Territories
- Paleontology in Nunavut
- Sandstone formations of Canada
- Conglomerate formations of Canada
- Shale formations of Canada
- Coal formations
- Canadian geologic formation stubs
- Cretaceous stubs
- Nunavut geography stubs