Concept information
Preferred term
Sandbian
Definition
- The Sandbian is the first stage of the Upper Ordovician. It follows the Darriwilian and is succeeded by the Katian. Its lower boundary is defined as the first appearance datum of the graptolite species Nemagraptus gracilis around 458.4 million years ago. The Sandbian lasted for about 5.4 million years until the beginning of the Katian around 453 million years ago. The name Sandbian is derived from the village Södra Sandby (Lund Municipality, Skåne County, Sweden). (Adapted from: https://en.wikipedia.org/wiki/Sandbian)
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/QX8-BJ62T8N6-9
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