RNames - Scheme: Epochs (ICS, 2020) (5)
Binning results
| Structured Name | Oldest | Youngest |
|---|---|---|
| 2dε | Furongian | Furongian |
| 3a | Middle Ordovician | Middle Ordovician |
| 3b | Middle Ordovician | Middle Ordovician |
| 4a | Middle Ordovician | Middle Ordovician |
| 4b | Middle Ordovician | Middle Ordovician |
| 4c | Middle Ordovician | Middle Ordovician |
| 5 | Lower Cretaceous | Lower Cretaceous |
| 5a | Upper Ordovician | Upper Ordovician |
| 5b | Upper Ordovician | Upper Ordovician |
| 5c | Upper Ordovician | Upper Ordovician |
| 5d | Upper Ordovician | Upper Ordovician |
| 6 | Lower Cretaceous | Lower Cretaceous |
| 6a | Upper Ordovician | Upper Ordovician |
| 6b | Upper Ordovician | Upper Ordovician |
| 6c | Upper Ordovician | Upper Ordovician |
| = | Lower Jurassic | Lower Jurassic |
| A | Lower Jurassic | Upper Triassic |
| Aalenian | Middle Jurassic | Middle Jurassic |
| Aalter | Eocene | Paleocene |
| Ab-e-Haji | Lower Jurassic | Upper Triassic |