Aalenian

Aalenian

Section Title:
Table Section Text: None

System/ Period	Series/ Epoch	Stage/ Age	Age (Ma)

Cretaceous	Lower/ Early	Berriasian	younger

Jurassic	Upper/ Late	Tithonian	~145.0	152.1

Kimmeridgian	152.1	157.3

Oxfordian	157.3	163.5

Middle	Callovian	163.5	166.1

Bathonian	166.1	168.3

Bajocian	168.3	170.3

Aalenian	170.3	174.1

Lower/ Early	Toarcian	174.1	182.7

Pliensbachian	182.7	190.8

Sinemurian	190.8	199.3

Hettangian	199.3	201.3

Triassic	Upper/ Late	Rhaetian	older

Subdivision of the Jurassic system according to the ICS, as of 2017.

Sentence(s)

The Aalenian is a subdivision of the Middle Jurassic epoch/series that extends from 170.3 Ma to 174.1 Ma.

final_sentence: The Aalenian is a subdivision of the Middle Jurassic epoch/series that extends from 170.3 Ma to 174.1 Ma.