# Dapingian

> first stage and age of the Middle Ordovician series and epoch

**Wikidata**: [Q288112](https://www.wikidata.org/wiki/Q288112)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dapingian)  
**Source**: https://4ort.xyz/entity/dapingian


## References

1. International Chronostratigraphic Chart 2013/01
2. [Source](https://stratigraphy.org/chart)
3. Freebase Data Dumps. 2013