part of part of skeleton of pectoral fin pectoral appendage skeleton pectoral fin skeleton ZFA:0000943 TAO:0000943 EFO:0003594 VSAO:0000153 UBERON:0010710 forefin skeleton Paired fin 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. paired fin skeleton subdivision of skeleton