Size of the Mongolian titanosaur <i>Opisthocoelicaudia</i>, which may be synonymous with the coeval <i>Nemegtosaurus</i>. <i>Opisthocoelicaudia</i> is only definitely known from a neckless, headless specimen, while <i>Nemegtosaurus</i> is only definitely known from a skull. <i>Nemegtosaurus</i> has been used to restore the skull here (and is illustrated to scale, as is the postcranium). The neck was very roughly based on Hartman's skeletal. Human silhouette from <a href="//commons.wikimedia.org/wiki/File:Silhouette_of_man_standing_and_facing_forward.svg" title="File:Silhouette of man standing and facing forward.svg">File:Silhouette of man standing and facing forward.svg</a> (CC0).
<h4><span class="mw-headline" id="References">References</span></h4>
<ul><li><cite style="font-style:normal">Borsuk-Białynicka, M. M. (1977). "<a rel="nofollow" class="external text" href="http://www.palaeontologia.pan.pl/Archive/1977-37_5-64_1-14.pdf">A new camarasaurid sauropod <i>Opisthocoelicaudia skarzynskii</i> gen. n., sp. n. from the Upper Cretaceous of Mongolia</a>". <i>Palaeontologia Polonica</i> <b>37</b> (5): 5–64.</cite></li>
<li><cite style="font-style:normal">Wilson, J.A. (2005). "<a rel="nofollow" class="external text" href="http://www-personal.umich.edu/~wilsonja/JAW/Publications_files/Wilson2005a.pdf">Redescription of the Mongolian sauropod <i>Nemegtosaurus mongoliensis</i> Nowinski (Dinosauria: Saurischia) and comments on Late Cretaceous sauropod diversity</a>". <i>Journal of Systematic Palaeontology</i> <b>3</b> (3): 283–318.</cite></li>
<li><a rel="nofollow" class="external text" href="https://www.skeletaldrawing.com/sauropods-and-kin/opisthocoelicaudia">Skeletal diagram by Scott Hartman</a></li></ul>
<a href="//commons.wikimedia.org/wiki/User:Slate_Weasel" title="User:Slate Weasel">User:Slate Weasel</a>
<span class="int-own-work" lang="en">Own work</span>