Atlanticopristis
... that the extinct sawfish Atlanticopristis had multiple barbs on both sides of its teeth?
... that the extinct <a href="./Sawfish" id="mw2A" rel="mw:WikiLink" title="Sawfish">sawfish</a> <i id="mw2Q"><b id="mw2g"><a href="./Atlanticopristis" id="mw2w" rel="mw:WikiLink" title="Atlanticopristis">Atlanticopristis</a></b></i> <i id="mw3A">(artist's impression pictured)</i> had multiple barbs on both sides of its teeth?