Alaunian subage - Sevatian subage
| International Chronostratigraphic Timescale | Mesozoic Subages | |||
|---|---|---|---|---|
| Triassic | Late Triassic | Rhaetian | 201.4 | |
| Norian | Sevatian | 205.7 | ||
| Alaunian | 211.18 * | |||
| Lacian | 215.38 * | |||
| Carnian | Tuvalian | 227.3 | ||
| Julian | 233.6 | |||
| Middle Triassic | Ladinian | Longobardian | 237 | |
| Fassanian | 239.48 | |||
| Anisian | Illyrian | 241.464 | ||
| Pelsonian | 243.43 * | |||
| Bithynian | 244.4 * | |||
| Aegean | 245.19 * | |||
| Early Triassic | Olenekian | Spathian | 247 | |
| Smithian | 248.6 * | |||
| Induan | Dienerian | 250.8 | ||
| Griesbachian | 251.1 * | |||
| 251.902 | ||||