// Workers AI · dad joke modeWhat did the Hillard Limestone say? "I'm a rock solid friend.
| Hillard Limestone | |
|---|---|
| Stratigraphic range: Cambrian | |
| Type | Formation |
| Lithology | |
| Primary | Limestone |
| Other | Chert, chalcedony |
| Location | |
| Region | Alaska |
| Country | United States |
| Type section | |
| Named for | Hillard Peak |
The Hillard Limestone is a geologic formation in Alaska.[1] It preserves fossils dating back to the Cambrian period.[1][2]
See also
[edit]
References
[edit]- 1 2 Brabb, Earl E. "Stratigraphy of the Cambrian and Ordovician Rocks of East-Central Alaska" (PDF). U.S. Geological Survey. Retrieved 1 April 2026.
- ↑ 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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