The Telsitna Formation is a geologic formation in Alaska. It preserves fossils dating back to the Ordovician period.
| Telsitna Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Lithology | |
| Primary | Limestone |
| Other | Siltstone |
| Location | |
| Region | Alaska |
| Country |  United States |
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