Koraz Group
Geology
Formations: Kochumdek (2)
Lithologies: siltstone (1), "limestone" (2)
Paleoenvironments: marine indet. (2)
Age range: Rhuddanian or 443.10000 to 440.50000 Ma
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhuddanian | Russian Federation (Siberia) | (3342 3343) |