Rønne Formation

The Rønne Formation is a geologic formation on the island on Bornholm, Denmark. It is of middle Hettangian to early Pliensbachian age. Vertebrate fossils have been uncovered from this formation. During the Early Jurassic, on what is now the Bornholm region was transitional between continental and marine settings with tidal influence.[1] There was a lower delta plain, with lagoons and intertidal swamps.[2] The formation is correlated with the lower Rya Formation and the upper Höganas Formation of Skåne, Sweden.[3]

Rønne Formation Stratigraphic range: Mid Hettangian-Early Pliensbachian ~200–190 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Sub-units	Galgeløkke, Sose Bugt & Munkerup Members
Underlies	Hasle Formation
Overlies	Kägeröd Formation
Thickness	50 m (160 ft)
Lithology
Primary	Siltstone, sandstone
Location
Coordinates	55.2°N 15.0°E / 55.2; 15.0
Approximate paleocoordinates	45.2°N 13.8°E / 45.2; 13.8
Region	Bornholm
Country	Denmark
Rønne Formation (Denmark)

Fossil content

The Rønne Formation has provided many fossil flora.[3]

Ichnofossils

Genus	Species	Material	Notes	Images
Neotheropoda	Indeterminate		Footprints.[4]

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

See also

• List of fossiliferous stratigraphic units in Denmark

References

1. Gravesen, P., Rolle, F. and Surlyk, F., 1982. Lithostratigraphy and sedimentary evolution of the Triassic, Jurassic and Lower Cretaceous of Bornholm, Denmark. Dan. Geol. Unders. Set. B, 7, 51 pp.
2. Surlyk, F., 1986. Field course in petroleum geology. Description of localities on Bornholm. 58 pp. (unpublished).
3. Petersen & Lindström, 2012, p.9
4. LARS B. CLEMMENSEN, JESPER MIL�AN, GUNVER K. PEDERSEN, ANNE B. JOHANNESEN AND CONNIE LARSEN.2014.

   Dinosaur tracks in Lower Jurassic coastal plain sediments (Sose Bugt Member, Rønne Formation) on Bornholm, Denmark

Bibliography

• Petersen, Henrik I., and Sofie Lindström. 2012. Synchronous Wildfire Activity Rise and Mire Deforestation at the Triassic–Jurassic Boundary. PLoS ONE 7. 1-15. Accessed 2020-07-02.