Size comparison of several members of <a href="//commons.wikimedia.org/wiki/Ceratopsidae" title="Ceratopsidae">Ceratopsidae</a>. The taxa included are listed here (from left to right): Left side: <i><a href="//commons.wikimedia.org/wiki/Pachyrhinosaurus" class="mw-redirect" title="Pachyrhinosaurus">Pachyrhinosaurus</a> canadensis</i>, <i><a href="//commons.wikimedia.org/wiki/Centrosaurus" title="Centrosaurus">Centrosaurus</a> apertus</i>, <i><a href="//commons.wikimedia.org/wiki/Styracosaurus" class="mw-redirect" title="Styracosaurus">Styracosaurus</a> albertensis</i>, and <i><a href="//commons.wikimedia.org/w/index.php?title=Nasutoceratops&amp;action=edit&amp;redlink=1" class="new" title="Nasutoceratops (page does not exist)">Nasutoceratops</a> titusi</i>. Right side: <i><a href="//commons.wikimedia.org/w/index.php?title=Eotriceratops&amp;action=edit&amp;redlink=1" class="new" title="Eotriceratops (page does not exist)">Eotriceratops</a> xerinsularis</i>, <i><a href="//commons.wikimedia.org/wiki/Triceratops" title="Triceratops">Triceratops</a> horridus</i>, <i><a href="//commons.wikimedia.org/wiki/Pentaceratops" class="mw-redirect" title="Pentaceratops">Pentaceratops</a> sternbergii</i>, <i><a href="//commons.wikimedia.org/w/index.php?title=Chasmosaurus&amp;action=edit&amp;redlink=1" class="new" title="Chasmosaurus (page does not exist)">Chasmosaurus</a> belli</i>.
<ul><li><i>Triceratops</i><sup id="cite_ref-Trike_1-0" class="reference"><a href="#cite_note-Trike-1">[1]</a></sup>, <i>Pachyrhinosaurus</i><sup id="cite_ref-Pachy_2-0" class="reference"><a href="#cite_note-Pachy-2">[2]</a></sup>, <i>Centrosaurus</i><sup id="cite_ref-Centro_3-0" class="reference"><a href="#cite_note-Centro-3">[3]</a></sup>, and <i>Styracosaurus</i><sup id="cite_ref-Styraco_4-0" class="reference"><a href="#cite_note-Styraco-4">[4]</a></sup> are based on their respective skeletals by Hartman.</li>
<li><i>Pentaceratops</i> is based on <a href="//commons.wikimedia.org/wiki/File:Pentaceratops_sternbergii.jpg" title="File:Pentaceratops sternbergii.jpg">a skeletal by Sampson et. al.</a>.<sup id="cite_ref-Penta_5-0" class="reference"><a href="#cite_note-Penta-5">[5]</a></sup></li>
<li><i>Nasutoceratops</i> is based on <a href="//commons.wikimedia.org/wiki/File:Nasutoceratops_skull_and_skeleton.jpg" title="File:Nasutoceratops skull and skeleton.jpg">a skeletal by Sampson et. al.</a>.<sup id="cite_ref-Nasuto_6-0" class="reference"><a href="#cite_note-Nasuto-6">[6]</a></sup></li>
<li><i>Chasmosaurus</i> is based on a skeletal by GetAwayTrike.<sup id="cite_ref-Chasmo_7-0" class="reference"><a href="#cite_note-Chasmo-7">[7]</a></sup></li>
<li><i>Eotriceratops</i> is based on a skull reconstruction by Sampson et. al.<sup id="cite_ref-Penta_5-1" class="reference"><a href="#cite_note-Penta-5">[5]</a></sup> and Hartman's <i>Triceratops</i> skeletal for unknown regions.<sup id="cite_ref-Trike_1-1" class="reference"><a href="#cite_note-Trike-1">[1]</a></sup></li>
<li><i>Eotriceratops</i>, <i>Pentaceratops</i>, <i>Pachyrhinosaurus</i>, <i>Centrosaurus</i> and <i>Styracosaurus</i> are scaled after Paul, 2016.<sup id="cite_ref-Size_8-0" class="reference"><a href="#cite_note-Size-8">[8]</a></sup></li>
<li><i>Triceratops</i> is scaled after a skeletal by GetAwayTrike.<sup id="cite_ref-maximus_9-0" class="reference"><a href="#cite_note-maximus-9">[9]</a></sup></li>
<li>The horn shape of <i>Triceratops</i> is based on Witton, 2018.<sup id="cite_ref-Horns_10-0" class="reference"><a href="#cite_note-Horns-10">[10]</a></sup></li></ul><p><b>References:</b>
</p>
<ol class="references"><li id="cite_note-Trike-1"><span class="mw-cite-backlink">↑ <a href="#cite_ref-Trike_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Trike_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Hartman, Scott (2013) <a rel="nofollow" class="external text" href="http://www.skeletaldrawing.com/ornithiscians/triceratops"><i>Triceratops horridus</i></a>. <i>Skeletal Drawing</i></span>
</li>
<li id="cite_note-Pachy-2"><span class="mw-cite-backlink"><a href="#cite_ref-Pachy_2-0">↑</a></span> <span class="reference-text">Hartman, Scott. <a rel="nofollow" class="external text" href="http://www.skeletaldrawing.com/ornithiscians/pachyrhinosaurus"><i>Pachyrhinosaurus canadensis</i></a>. <i>Skeletal Drawing</i></span>
</li>
<li id="cite_note-Centro-3"><span class="mw-cite-backlink"><a href="#cite_ref-Centro_3-0">↑</a></span> <span class="reference-text">Hartman, Scott (2015) <a rel="nofollow" class="external text" href="http://www.skeletaldrawing.com/ornithiscians/centrosaurus"><i>Centrosaurus apertus</i></a>. <i>Skeletal Drawing</i></span>
</li>
<li id="cite_note-Styraco-4"><span class="mw-cite-backlink"><a href="#cite_ref-Styraco_4-0">↑</a></span> <span class="reference-text">Hartman, Scott (2013) <a rel="nofollow" class="external text" href="http://www.skeletaldrawing.com/ornithiscians/styracosaurus"><i>Styracosaurus albertensis</i></a>. <i>Skeletal Drawing</i></span>
</li>
<li id="cite_note-Penta-5"><span class="mw-cite-backlink">↑ <a href="#cite_ref-Penta_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Penta_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Sampson SD, Loewen MA, Farke AA, Roberts EM, Forster CA, Smith JA, et al. (2010) <a rel="nofollow" class="external text" href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0012292">New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism</a>. <i>PLoS ONE</i> <b>5</b>(9): e12292.</span>
</li>
<li id="cite_note-Nasuto-6"><span class="mw-cite-backlink"><a href="#cite_ref-Nasuto_6-0">↑</a></span> <span class="reference-text">Sampson, S. D.; Lund, E. K.; Loewen, M. A.; Farke, A. A.; Clayton, K. E. (2013). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730592/">A remarkable short-snouted horned dinosaur from the Late Cretaceous (late Campanian) of southern Laramidia</a>. <i>Proceedings of the Royal Society B: Biological Sciences</i> <b>280</b>(1766): 20131186.</span>
</li>
<li id="cite_note-Chasmo-7"><span class="mw-cite-backlink"><a href="#cite_ref-Chasmo_7-0">↑</a></span> <span class="reference-text">GetAwayTrike <a rel="nofollow" class="external text" href="https://www.deviantart.com/getawaytrike/art/Horns-and-windows-725302518">Horns and Windows</a>. <i>Deviant Art</i></span>
</li>
<li id="cite_note-Size-8"><span class="mw-cite-backlink"><a href="#cite_ref-Size_8-0">↑</a></span> <span class="reference-text">Paul, Gregory S. (2016) <i>The Princeton Field Guide to Dinosaurs</i>. 2nd ed. Princeton University Press.</span>
</li>
<li id="cite_note-maximus-9"><span class="mw-cite-backlink"><a href="#cite_ref-maximus_9-0">↑</a></span> <span class="reference-text">GetAwayTrike <a rel="nofollow" class="external text" href="https://www.deviantart.com/getawaytrike/art/The-maximum-662100498">The maximum</a>. <i>Deviant Art</i></span>
</li>
<li id="cite_note-Horns-10"><span class="mw-cite-backlink"><a href="#cite_ref-Horns_10-0">↑</a></span> <span class="reference-text">Witton, Mark P. (2018) <i>The Palaeoartist's Handbook</i>. The Crowood Press.</span>
</li>
</ol>
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