Global InformationFolkeslunda Limestone information
| Folkeslunda Limestone | |
|---|---|
| Stratigraphic range: Darriwilian (Lasnamägi) | |
| Type | Formation |
| Underlies | Furudal Limestone |
| Overlies | Seby Limestone |
| Thickness | 0.99–3.51 m (3.2–11.5 ft) |
| Lithology | |
| Primary | Calcarenitic limestone |
| Other | Mudstone |
| Location | |
| Coordinates | 58°00′N 15°00′E / 58.0°N 15.0°E |
| Approximate paleocoordinates | 36°00′S 8°18′W / 36.0°S 8.3°W |
| Region | In situ: Dalarna, Jämtland, Öland & Östergötland Ex situ: Mecklenburg-Vorpommern, Lubusz & Kuyavia-Pomerania |
| Country |  SwedenEx situ:  Germany Poland |
| Extent | Patches from Jämtland (N) via Siljan (C) to Öland (SE) |
| Type section | |
| Named for | Folkeslunda, Öland |
| Named by | Jaanusson |
| Location | Långlöt & Runsten, Öland |
| Year defined | 1960 |
| Coordinates | 56°43′38.4″N 16°43′01.9″E / 56.727333°N 16.717194°E |
   Folkeslunda Limestone (Sweden) | |
The Folkeslunda Limestone is a thin limestone and mudstone geologic formation of Sweden. The formation crops out on the island of Öland to the east of Kalmar, where Folkeslunda is located. Other exposures of the formation are in Dalarna, Jämtland and Östergötland. The Folkeslunda Limestone was deposited in an open marine environment with an estimated water depth of 150 to 200 metres (490 to 660 ft) in a eustatically transgressive phase.
The formation preserves fossils dating back to the late Darriwilian (Lasnamägi stage in the regional stratigraphy) of the Middle Ordovician period, dating to 463.5 to 460.9 Ma. Several genera of nautiloids, trilobites, brachiopods and ostracods were found in the maximum 3.51 metres (11.5 ft) thick formation.
Erratic blocks of the same formation are also found in Germany (Mecklenburg-Vorpommern) and along the Vistula River in Bydgoszcz and in Żary, Lower Silesia, Poland.