System	Series	Stage	Age (Ma)
Jurassic	Lower	Hettangian	younger
Triassic	Upper	Rhaetian	199.6–203.6
		Norian	203.6–216.5
		Carnian	216.5–228.0
	Middle	Ladinian	228.0–237.0
		Anisian	237.0–245.0
	Lower	Olenekian	245.0–249.7
		Induan	249.7–251.0
Permian	Lopingian	Changhsingian	older
Subdivision of the Triassic system according to the IUGS, as of July 2009.

Iin the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided. It spans the time between 245 ± 1.5 Ma and 228 ± 2 Ma (million years ago). The Middle Triassic is divided into the Anisian and Ladinian ages or stages.

Formerly the middle series in the Triassic was also known as Muschelkalk. This name is now only used for a specific unit of rock strata with approximately Middle Triassic age, found in western Europe.

[edit] References

• GeoWhen Database - Middle Triassic

Triassic period
Lower/Early Triassic	Middle Triassic	Upper/Late Triassic
Induan | Olenekian	Anisian | Ladinian	Carnian | Norian Rhaetian

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