Sawfish
Sawfishes, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish with some species reaching lengths of about . They are found worldwide in tropical and subtropical regions in coastal marine and brackish estuarine waters, as well as freshwater rivers and lakes.
Sawfish
The extinct family Sclerorhynchidae resemble sawfish. They are known only from Cretaceous fossils, and usually reached lengths only of approximately . Some have suggested that sawfish and sclerorhynchids form a clade, the Pristiorajea, while others believe the groups are not particularly close, making the proposed clade polyphyletic.