Jurassic
Period ranging from 200 million years ago until 146 million years ago.
This is the time of the large reptiles. Many species of dinosaurs developed. Also flying dinosaurs, like the Archaeopteryx developed. These flying dinosaurs developed later into birds. The number of mammal species and crustaceans increased, and the first crocodiles appeared. The plants developed further. Many ammonites en sea urchins.
Period
| Epoch
| Stage
| Age (in Milion years) *
| 
| Upper (Malm)
| Tithonian
| 146 - 151
| Kimmeridgian
| 151 - 155
| Oxfordian
| 155 - 161
| Middle (Dogger)
| Callovian
| 161 - 165
| Bathonian
| 165 - 168
| Bajocian
| 168 - 172
| Aalenian
| 172 - 176
| Lower (Lias)
| Toarcian
| 176 - 183
| Pliensbachian
| 183 - 190
| Sinemurian
| 190 - 197
| Hettangian
| 197 - 200
|
* Age is rounded
Click here for locations from this period.
 Go to the Photo page to view photographs of fossils from the Jurassic. |
