Äiamaa Formation
| Belongs to | Baltic lithostratigraphy (Ordovician) |
| Type | lithostratigraphy |
| Rank | Formation |
| Scope | regional |
| Status | deprecated |
| Author | Grigelis |
| Year | 1978 |
| Original locality | Äiamaa, int. 89,2-96,0m |
| Age (Ma) | Pirgu Stage |
| Date added | 2009-10-02 |
| Date changed | 2011-12-14 |
Locality | Type | From (m) | To (m) | Reference | Remarks | |
|---|---|---|---|---|---|---|
| Äiamaa borehole | holostratotype | 89.2 | 96 | Männil, Ralf & Rõõmusoks, 1984 |
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