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Where were the Induan and Olenekian stage stratotypes established?
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Triassic Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the early Triassic Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The stratotypes for the Induan and Olenekian stages of the Triassic Period were established in the following locations:
- Induan Stage: The stratotype is defined by the strata located in the Salt Range of Pakistan, specifically the beds situated above the Chhideru formation and below the Upper Ceratite Limestone.1
- Olenekian Stage: Defined in 1956, the stratotype consists of the strata found along the lower course of the Olenyok River in Siberia, which rest upon Induan deposits and are overlain by the Anisian Stage.2