# Lochkovian

> first stage and age of the Lower Devonian series / Early Devonian epoch

**Wikidata**: [Q1089613](https://www.wikidata.org/wiki/Q1089613)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lochkovian)  
**Source**: https://4ort.xyz/entity/lochkovian


## References

1. International Chronostratigraphic Chart 2013/01
2. [Source](https://stratigraphy.org/gssps/)
3. [Thirty years of the first international stratotype: The Silurian-Devonian boundary at Klonk and its present status](https://doi.org/10.18814/epiiugs/2003/v26i1/002)
4. [Source](https://stratigraphy.org/gssps/lochkovian)