Comparison of reconstructed sails of spinosaurid dinosaurs; clockwise from top left: <i>Irritator</i>, <i>Spinosaurus</i>, <i>Suchomimus</i>, and <i>Ichthyovenator</i>.
<p>Collage by <a href="//commons.wikimedia.org/wiki/User:PaleoGeekSquared" title="User:PaleoGeekSquared">PaleoGeekSquared</a>
</p><p><i>Irritator</i> by <a href="//commons.wikimedia.org/w/index.php?title=User:Edwardliu2013&amp;action=edit&amp;redlink=1" class="new" title="User:Edwardliu2013 (page does not exist)">Edwardliu2013</a>
</p><p><i>Spinosaurus</i> and <i>Ichthyovenator</i> by ★Kumiko★
</p>
<i>Suchomimus</i> by <a href="//commons.wikimedia.org/wiki/User:Nkansahrexford" title="User:Nkansahrexford">Nkansahrexford</a>
CC BY 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:20130825_Brazil_Rio_de_Janeiro_0144.jpg" title="File:20130825 Brazil Rio de Janeiro 0144.jpg"><i>Irritator</i></a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Spinosaurus_in_Japan_Expo.jpg" title="File:Spinosaurus in Japan Expo.jpg"><i>Spinosaurus</i></a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Iziko_Jobaria_Dinosaur_Skeleton_Panorama.jpg" title="File:Iziko Jobaria Dinosaur Skeleton Panorama.jpg"><i>Suchomimus</i></a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Ichthyovenator_laosensis.jpg" title="File:Ichthyovenator laosensis.jpg"><i>Ichthyovenator</i></a></li></ul>