The Ochoan is a stage in the Permian stratigraphy (and an age in the geologic timescale) of North America.[1] The Ochoan age is roughly simultaneous with the Changhsingian age in the timescale of the ICS.[2] This post-Guadalupian stage is known for high levels of evaporite deposits.
References
edit- ^ "GeoWhen Database - Ochoan". timescalefoundation.org.
- ^ Shen, Shu-Zhong. "The international Permian timescale: March 2013 update" (PDF). Retrieved 6 February 2024.
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