Fig. 8 in Microstructural diversity of the stylophyllid (Scleractinia) skeleton

Fig. 8. Stylophyllopsis sp. cf. S. rugosa (Duncan and Wright, 1867), IPUM−Sic.5. SEM micrographs of transverse, polished and etched corallum surfaces. A. Corallum fragment with septal spines (arrows); rectangle indicate position of enlargement on B. B–D. Dark, radiating structures shown in Fig. 7E are composed of crystals with pockmarked surfaces (arrows in B, C). Specimen from Sinemurian Black Limestones, Longi, Sicily.