Mesozoic Era
The "Age of Reptiles" - spanning approximately 180 million years of dinosaur evolution.
International Chronostratigraphic Chart (Linear Scale)
| Era | Period | Epoch | Age | End (Ma) | |
|---|---|---|---|---|---|
| Cenozoic | present | ||||
| Mesozoic | Cretaceous | Late | Maastrichtian | 66.00 | |
| Campanian | 72.2 ±0.2 | ||||
| Santonian | 83.6 ±0.2 | ||||
| Coniacian | 85.7 ±0.2 | ||||
| Turonian | 89.8 ±0.3 | ||||
| Cenomanian | 93.9 ±0.2 | ||||
| Early | Albian | 100.5 ±0.1 | |||
| Aptian | 113.2 ±0.3 | ||||
| Barremian | 121.4 ±0.6 | ||||
| Hauterivian | 125.77 | ||||
| Valanginian | 132.6 ±0.6 | ||||
| Berriasian | 137.05 ±0.2 | ||||
| Jurassic | Late | Tithonian | 143.1 ±0.6 | ||
| Kimmeridgian | 149.2 ±0.7 | ||||
| Oxfordian | 154.8 ±0.8 | ||||
| Middle | Callovian | 161.5 ±1.0 | |||
| Bathonian | 165.3 ±1.1 | ||||
| Bajocian | 168.2 ±1.2 | ||||
| Aalenian | 170.9 ±0.8 | ||||
| Early | Toarcian | 174.7 ±0.8 | |||
| Pliensbachian | 184.2 ±0.3 | ||||
| Sinemurian | 192.9 ±0.3 | ||||
| Hettangian | 199.5 ±0.3 | ||||
| Triassic | Late | Rhaetian | ~201.4 ±0.2 | ||
| Norian | ~205.7 | ||||
| Carnian | ~227.3 | ||||
| Middle | Ladinian | ~237 | |||
| Anisian | 241.464 ±0.28 | ||||
| Early | Olenekian | 247.0 | |||
| Induan | 250.8 | ||||
| Paleozoic boundary | 251.902 ± 0.024 | 185.9 | |||