Figure F8. Scanning electron photomicrographs of corals and different traces of bioerosion on coral fragments. A. Aragonitic crystals of a coral skeleton (Sample 307-U1317A-8H-1, 135–140 cm). B. Rounded chambers of Saccomorpha clava (Radtke, 1991) (Sample 307-U1317A-3H-6, 115–120 cm) C. Tunnels (5–10 µm in diameter) of Orthogonum lineare (Glaub, 1994) (Sample 307-U1317A-5H-3, 85–90 cm). D. Large borings attributed to clionid sponges (Sample 307-U1317A-5H-5, 145–150 cm).
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