| 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 |
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]
The 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]