# Siderian

> first period of the Paleoproterozoic Era

**Wikidata**: [Q870498](https://www.wikidata.org/wiki/Q870498)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Siderian)  
**Source**: https://4ort.xyz/entity/siderian


## References

1. International Chronostratigraphic Chart 2023/09
2. [Source](https://stratigraphy.org/ICSchart/CGMW_ICS_colour_codes.xlsx)
3. Freebase Data Dumps. 2013
4. BabelNet
5. KBpedia