Size comparison of the azhdarchid pterosaurs <i>Quetzalcoatlus northropi</i> and <i>Quetzalcoatlus lawsoni</i>, with a human. Modified from a diagram featured in Witton and Naish (2008).
Matt Martyniuk (<a href="//commons.wikimedia.org/wiki/User:Dinoguy2" title="User:Dinoguy2">Dinoguy2</a>), Mark Witton and Darren Naish
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>