Figure 2. The result of large-scale waterblasting of a block of Danian chalky limestone, Fakse Limestone Quarry. Sample GM 2004.919. 1. Bedding plane with abundant octocorals and oysters. The cleaning took about one minute. Scale bar 150 mm. 2. Close-up of a large oyster with scattered encrustations of cheliostomate bryozoans and single serpulids. Scale bar 25 mm. 3. Further close-up section of the oyster showing that the waterblasting provides a superior cleaning effect without harming encrustations and boring openings (Entobia isp.). Scale bar 5 mm. 4. Close-up of numerous fragmented stems of octocorals and a fragment of an echinoid test, Cidaris sp. (arrow). Scale bar 20 mm. 5. Further close-up of the echinoid and the octocorals. The octocorals have been heavily bioeroded by Cliona sponges. Scale bar 2 mm.