part of start stage end stage paired fin skeleton pectoral fin skeleton zebrafish_anatomy Skeleton that consists of the supporting endochondral proximal and distal radials and the dermal fins rays or lepidotrichia. The pectoral fin skeleton is located in the thoracic region of the body and articulates with the scapula and coracoid. TAO:0000943 ZFA:0000943 pectoral fin pharyngula:high-pec adult