Figure 5. Application of the acid-hot water method on an articulated asteroid, Metopaster kagstrupensis Brünnich Nielsen, 1943. The asteroid was recovered from the Middle Danian Bryozoan Limestone (Tylocidaris abildgaardi Biozone) at Stevns Klint, Denmark. DK 283. Scale bar 25 mm. 1. Dorsal side of M. kagstrupensis. 2. The specimen enclosed in plaster jacket before treatment with the acid-hot water method. 3-6. Successive stages in preparation. 7. Ventral side of the prepared asteroid, airbrushed with black ink prior to coating with ammonium chloride.