Beyrichienkalk Formation
# Beyrichienkalk Formation

The Beyrichienkalk Formation is a geologic formation in Gotland, Sweden. It preserves fossils dating back to the Silurian period. The formation is represented in erratic boulders found in:

* Oderberg, Brandenburg, Germany
* Voigtsdorf, Mecklenburg-Western Pomerania, Germany
* Międzyzdroje, West Pomerania, Poland
* Orłowo, Poland
* Vistula River, Bydgoszcz, Kuyavia-Pomerania, Poland

## Fossil content

The following fossils have been reported from the formation:

### Cephalopods

* Spyroceras damesi
