# Posidonia Shale

> Early Jurassic geological formation of south-western Germany

**Wikidata**: [Q2105647](https://www.wikidata.org/wiki/Q2105647)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Posidonia_Shale)  
**Source**: https://4ort.xyz/entity/posidonia-shale