Figure 15. Pectoral fin skeleton. A in Combined phylogeny and new classification of catsharks (Chondrichthyes: Elasmobranchii: Carcharhiniformes)

Figure 15. Pectoral fin skeleton. A, Poroderma pantherinum, SAIAB 34577, male, 640 mm TL. B, Apristurus laurussonii, UF 185652, male, 480 mm TL. C, Gollum attenuatus, NSMT 42855, female, 950 mm TL. D, Loxodon macrorhinus, HUMZ 37632, male, 750 mm TL. Abbreviations: dr, distal radial elements; mes, mesopterygium; mr, medial radial elements; mtp, metapterygium; mtpax, metapterygium axial; pr, proximal radial elements; pro, propterygium; TL, total length.