# Cisuralian

> first series and epoch of the Permian system and period

**Wikidata**: [Q642169](https://www.wikidata.org/wiki/Q642169)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cisuralian)  
**Source**: https://4ort.xyz/entity/cisuralian


## References

1. International Chronostratigraphic Chart 2013/01
2. International Chronostratigraphic Chart 2023/09
3. KBpedia