Figure 8. Small-scale wetblasting with carborundum powder (Paasche airbrush) of bivalves from the Upper Maastrichtian White Chalk at Stevns Chalk Quarry adjacent to Stevns Klint, Denmark. These calcitic bivalves may be encrusted by fragile bryozoans. 1. Merklinia variabilis (von Hagenov, 1842). The ornamentation of their outer shell surface is commonly covered by matrix. GM 2004.922. Scale bar 10 mm. 2. Merklinia variabilis, right valve. GM 1987.67. Scale bar 5 mm. 3. Mimachlamys cretosa (Defrance in Brongniart, 1822), right valve. GM 2004.923. Scale bar 5 mm. 4. Dhondtichlamys pulchella (Nilsson, 1827), both valves. GM 2004.924. Scale bar 5 mm. 5. Paranomia sp. GM 1987.53. Scale bar 5 mm. 6. Bryozoan colony, unknown taxon. Scale bar 2 mm. 7. Tricephalopora sp. Scale bar 2 mm. 8. Dhondtichlamys campaniensis (d´Orbigny, 1847) right valve. GM 1987.71. Scale bar 5 mm. 9. Spondylus dutempleanus (d´Orbigny, 1847) left valve. GM 2004.925. Scale bar 5 mm. Click on figure for enlargements.