Friday, January 28, 2005

Anisian Stage

Lowermost of two divisions of the Middle Triassic Series, representing those rocks deposited worldwide during Anisian time (242 million to 234 million years ago) in the Triassic Period. The stage name is derived from an area of limestone formations along the Anisus River at Grossreifling in the Austrian Alps. The Anisian Stage is subdivided, in ascending order, into the

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