RNames - Scheme: Periods (ICS, 2020) (8)
Binning results
| Structured Name | Oldest | Youngest |
|---|---|---|
| "Senecan" | Neogene | Quaternary |
| 'A' | Devonian | Devonian |
| 'Arqov | Triassic | Permian |
| 'Fifth' | Permian | Permian |
| 'First' | Permian | Permian |
| 'Fourth' | Permian | Permian |
| 'Second' | Permian | Permian |
| 'Third' | Permian | Permian |
| 'Ubeidiya | Quaternary | Neogene |
| (?) Malokinelskaya | Permian | Permian |
| 0 | Triassic | Permian |
| 1 | Neogene | Neogene |
| 2 | Quaternary | Neogene |
| 2dε | Cambrian | Cambrian |
| 4c | Ordovician | Ordovician |
| 5a | Ordovician | Ordovician |
| 5b | Ordovician | Ordovician |
| 5c | Ordovician | Ordovician |
| 5d | Ordovician | Ordovician |
| 6a | Ordovician | Ordovician |