Gai-As Formation
Geology
Group: "Ecca"
Members: unnamed (4)
Lithologies: mudstone (2), siltstone (2), sandstone (1)
Paleoenvironments: lacustrine - large (3), lacustrine indet. (1)
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cisuralian | Namibia | (235389) | |
| Kungurian - Roadian | Namibia (Erongo) | (90437) | |
| Wordian - Capitanian | Namibia | (101184 101185) |