The Mulde formation is a sequence of Silurian bluish-gray marlstone and agrillceous limestones found on the southwestern part of the island of Gotland. It generally becomes harder and less marly in the upper parts of the formation.[1]
| Mulde Formation | |
|---|---|
| Stratigraphic range: Gorstian ~ | |
| Type | Geological formation |
| Underlies | Klinberg formation |
| Overlies | Slite Formation |
| Lithology | |
| Primary | Marlstone, limestone |
| Location | |
| Region | South Gotland |
| Country |  Sweden |
| Type section | |
| Named for | Mulde |
Fossil content
editThe formation holds some of the best fossils on Gotland, being the best place to find well preserved trilobites. Some examples are Calymene, Dalmanites, Encrinurus and Proteus.[2] Ostracods (beyrichids etc.), brachiopods (Atrypa reticularis, Leptaena, Eospirifer etc.), bryozoans and tentaculitids are also relatively common while corals, grapolites, annelids and cephalopods are more rare.[3]