Jurassic Period

[imaboylovr08]

The Era, Periods, and Epochs:

Compare and Contrast: 3 different aproximate year dates.



Period

Epoch (sub-period)

Age

When began

Duration

Jurassic
54 My

Late Jurassic
(Malm) 15 My

Tithonian

151

5

Kimmeridgian

156

5

Oxfordian

161

5

Middle Jurassic
 (Dogger) 15 My

Callovian

165

4

Bathonian

168

3

Bajocian

172

4

Aalenian

176

4

Early Jurassic
(Lias) 24 My

Toarcian

183

7

Pliensbachian

190

7

Sinemurian

197

7

Hettangian

200

3

3 Parts of the Jurassic:

Early
(Lias)
206-180 mya

Middle
(Dogger)
180-154 mya

Late
(Malm)
154-144 mya