Fig. 7 in Chondrichthyan fauna of the Frasnian-Famennian boundary beds in Poland

Fig. 7. Non−chondrichthyan ichthyoliths from the Frasnian–Famennian boundary beds. A. Acanthodian scale, ZPALP.IV/313, from Płucki, sample P−1, Pa. linguiformis Zone, lateral view, × 90. B–E. Specimens from Dębnik, sample 13, Early Pa. triangularis Zone. B. Acanthodian scale, IGPUW/Ps/4/14, basal view, × 80. C. Sarcopterygian Strunius rolandi, parasymphysial tooth, IGPUW/Ps/4/15, lateral view, × 40. D. Actinopterygian scale, IGPUW/Ps/4/16, × 60. E. Osteichthyan jaw fragment, IGPUW/Ps/4/17, × 60. All SEM micrographs.