English: Asteracanthus ornatissimus Agassiz, 1837, PBP‐SOL‐8003, from the lower Tithonian of Solnhofen, Bavaria, Germany. A, interpretative line drawing. B, slab containing specimen. C, close‐up view of anterior dorsal fin spine. D, close‐up view of posterior dorsal fin spine. E, tentative life reconstruction of female A. ornatissimus (by Fabrizio De Rossi). Abbreviations: adfs, anterior dorsal fin spine; af, anal fin; bv, basiventral; cf, caudal fin; ebr, epibranchial; lal, lateral line; Mc, Meckel's cartilage; nc, neurocranium; notc, notochord; pcf, pectoral fin; pdfs, posterior dorsal fin spine; plr, pleural rib; pq, palatoquadrate; pvf, pelvic fin; scc, scapulacoracoid. Scale bars represent: 50 cm (A, B); 10 cm (C, D)