File:Allosaurus Jaws Steveoc86.jpg
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:13, 7 January 2017 | | 1,024 × 768 (245 KB) | 127.0.0.1 (talk) | <p><i><a href="https://en.wikipedia.org/wiki/Allosaurus" class="extiw" title="en:Allosaurus">Allosaurus</a></i> skull: Showing the maximum possible gape of <i>Allosaurus</i> as <a href="https://en.wikipedia.org/wiki/Hypothesis" class="extiw" title="en:Hypothesis">hypothesized</a> by <a href="https://en.wikipedia.org/wiki/Robert_T._Bakker" class="extiw" title="en:Robert T. Bakker">Robert Bakker</a> </p> <dl><dd>• The wide gape is based on figure 6 in 'Bakker 1998'. The head shape is based on specien AMNH 666, what Bakker calls 'Creosaur style allosaur'. <sup id="cite_ref-BB98_1-0" class="reference"><a href="#cite_note-BB98-1">[1]</a></sup> 'Creosaurus' is genrally thought to be <a href="https://en.wikipedia.org/wiki/Synonym_(taxonomy)" class="extiw" title="en:Synonym (taxonomy)">synonymous</a> with <i>Allosaurus</i>. A study in 2015 using computer models came to a similar conclusion. <sup id="cite_ref-SLautenschlager2015_2-0" class="reference"><a href="#cite_note-SLautenschlager2015-2">[2]</a></sup> </dd></dl> <dl><dd>• The skin details are partly speculative. A juvenille <a href="https://en.wikipedia.org/wiki/Allosauridae" class="extiw" title="en:Allosauridae">allosaur</a> is known to have had scaly skin on some parts of its body<sup id="cite_ref-JuvAllo98_3-0" class="reference"><a href="#cite_note-JuvAllo98-3">[3]</a></sup>. Up until recently large theropods with skin impressions have shown 'typical dinosaurian' scales.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4">[4]</a></sup> In 2012 <i><a href="https://en.wikipedia.org/wiki/Yutyrannus" class="extiw" title="en:Yutyrannus">Yutyrannus</a></i> was described, it showed that large theropods could have been covered in feathers <sup id="cite_ref-yutyrannus_5-0" class="reference"><a href="#cite_note-yutyrannus-5">[5]</a></sup>. There are many dinosaurs being discovered from all over the family tree with evidence of quils or feathers so it is possible that allosaurs also had them (see <a href="https://en.wikipedia.org/wiki/Feathered_dinosaur" class="extiw" title="en:Feathered dinosaur">Feathered Dinosaur</a>).</dd></dl> <h2><span class="mw-headline" id="References">References</span></h2> <div class="reflist references-column-width" style="-moz-column-width: 35em; -webkit-column-width: 35em; column-width: 35em; list-style-type: decimal;"> <ol class="references"> <li id="cite_note-BB98-1"> <span class="mw-cite-backlink"><a href="#cite_ref-BB98_1-0">↑</a></span> <span class="reference-text"><cite style="font-style:normal">Bakker, Robert T. (1998). "<a rel="nofollow" class="external text" href="http://www.arca.museus.ul.pt/ArcaSite/obj/gaia/MNHNL-0000779-MG-DOC-web.PDF">Brontosaur killers: Late Jurassic allosaurids as sabre-tooth cat analogues</a>" (pdf). <i>Gaia</i> <b>15</b>: 145–158. <a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number" class="extiw" title="en:International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="http://www.worldcat.org/issn/0871-5424">0871-5424</a>.</cite></span> </li> <li id="cite_note-SLautenschlager2015-2"> <span class="mw-cite-backlink"><a href="#cite_ref-SLautenschlager2015_2-0">↑</a></span> <span class="reference-text"><cite style="font-style:normal">Lautenschlager, Stephan (2015). "<a rel="nofollow" class="external text" href="http://rsos.royalsocietypublishing.org/content/royopensci/2/11/150495.full.pdf">Estimating cranial musculoskeletal constraints in theropod dinosaurs</a>" (pdf). <i>Royal Society Oepn Science</i> <b>2</b>.</cite></span> </li> <li id="cite_note-JuvAllo98-3"> <span class="mw-cite-backlink"><a href="#cite_ref-JuvAllo98_3-0">↑</a></span> <span class="reference-text"><cite style="font-style:normal">Pinegar, Richard. Tyler; et al. (2003). "A Juvenile Allosaur with Preserved Integument from the Basal Morrison Formation of Central Wyoming". <i>Journal of Vertebrate Paleontology</i> <b>23</b>.</cite></span> </li> <li id="cite_note-4"> <span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><cite class="book" style="font-style:normal">Currie, Philip J and Kevin Padian , ed. (<span style="white-space:nowrap"><time class="dtstart" datetime="1997">1997</time></span>) , Academic Press, p. 100 <small></small></cite></span> </li> <li id="cite_note-yutyrannus-5"> <span class="mw-cite-backlink"><a href="#cite_ref-yutyrannus_5-0">↑</a></span> <span class="reference-text"><cite style="font-style:normal"> (2012). "<a rel="nofollow" class="external text" href="http://www.xinglida.net/pdf/Xu_et_al_2012_Yutyrannus.pdf">A gigantic feathered dinosaur from the Lower Cretaceous of China</a>" (PDF). <i>Nature</i> <b>484</b>: 92–95. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1038/nature10906">10.1038/nature10906</a>. <a href="https://en.wikipedia.org/wiki/PMID" class="extiw" title="w:PMID">PMID</a> <a rel="nofollow" class="external text" href="http://www.ncbi.nlm.nih.gov/pubmed/22481363">22481363</a>.</cite></span> </li> </ol> </div> <p><b>NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well. Thanks.</b> </p> <p><br><sup id="cite_ref-JuvAllo98_6-0" class="reference"><a href="#cite_note-JuvAllo98-6">[1]</a></sup></p> |
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