• Ref. 11073: "Hamra/Sundre Beds (50m): The oolitic limestones of the upper Burgsvik Beds pass into oncolites with bioclasts of normal marine fauna. At Hoburgen, in the SW part of Gotland, these are overlain by a series of massive bioherms surrounded and covered by detritic and coarse crinoidal limestones (Sundre Beds). To the NE these platform deposits are replaced by micritic and argillaceous limestones with back reef character and often with an impoverished benthic fauna. Southwards, the carbonate platform of Hoburgen passes into a shelf basin area with the deposition of a limestone-marl sequence which then grades into off-reef shelf sediments ("Beyrichia Limestone") south of Gotland."