Are sharks lobe finned?
Score: 4.6/5 (13 votes) The vertebrates that possess all four propeptides span the groups of Actinopterygians (ray-finned fishes) and Sarcopterygians (flesh- or lobe-finned fishes) (Fig. 3). Among Chondrichthyes (sharks, rays, and chimaeras), it has so far been possible to identify proenkephalin, pr...