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.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. There was a lower delta plain, with lagoons and intertidal swamps.Surlyk, F., 1986. Field course in petroleum geology. Description of localities on Bornholm. 58 pp. (unpublished). The formation is correlated with the lower Rya Formation and the upper Höganäs Formation of Skåne, Sweden.Petersen & Lindström, 2012, p.9
Fossil content The Rønne Formation has provided many fossil flora.
Ichnofossils Genus Species Material Notes Images Neotheropoda Indeterminate Footprints.LARS B. CLEMMENSEN, JESPER MILÀN, 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
See also List of fossiliferous stratigraphic units in Denmark
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