Stratotype

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In geology, a stratotype or type section is the physical location or outcrop of a particular reference exposure of a stratigraphic sequence or stratigraphic boundary. If the stratigraphic unit is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality.

Excerpt from the Wikipedia article “Stratotype”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Spiridon Ion Cepleanu, CC BY-SA 4.0, via Wikimedia Commons.