paired fin suprabranchial fin Paired fin that is a bilaterally paired anterior outgrowth located high on the side of the animal, not far behind the orbit, with the posterior extremity corresponding with the expected posterior end of the branchial region. Suprabranchial fins are anterior outgrowths from the cephalothorax of thelodonts. Typically scale covered. They do not appear to contain skeletal tissues or elements. VSAO:0000182 vertebrate_skeletal_anatomy