(1–3) Leptophyllia sp., LFU 8336SG015155#1. 1. Transversal thin section. 2. Transversal thin section, detail. 3. Longitudinal thin section. (4–6) Synastrea agaricites (Goldfuss, 1826). LFU 8336SG015099#1. 4. Transversal thin section. 5. Transversal thin section, detail. 6. Longitudinal thin section. (7–9) Synastrea cf. catadupensis (Vaughan, 1899). BSPG 1947 XVI 70. 7. Transversal thin section. 8. Transversal thin section, detail. 9. Longitudinal thin section. (10–12) Synastrea exaltata (Reuss, 1854). LFU 8336SG015090#1. 10. Transversal thin section. 11. Transversal thin section, detail. 12. Longitudinal thin section. Scale bars: 1 mm.