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<h1 id="firstHeading" class="firstHeading mw-first-heading"><i>Megapnosaurus</i></h1>
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<th><i>Megapnosaurus</i>
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<td class="taxo-bild" style="font-size:smaller;">
<p><i>Megapnosaurus kayentakatae</i>
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<th><a href="Erdzeitalter" class="mw-redirect" title="Erdzeitalter">Zeitliches Auftreten</a>
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<td class="taxo-zeit"><a href="Jura_(Geologie)" title="Jura (Geologie)">Unterjura</a> (<a href="Hettangium" title="Hettangium">Hettangium</a> bis <a href="Sinemurium" title="Sinemurium">Sinemurium</a>)<sup id="cite_ref-paul_10_1-0" class="reference"><a href="#cite_note-paul_10-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
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<td class="taxo-zeit">201,3 bis 190,8 <a href="Mya_(Zeitskala)" title="Mya (Zeitskala)">Mio. Jahre</a>
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<th><a href="Fossil" title="Fossil">Fundorte</a>
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<ul><li><a href="Afrika" title="Afrika">Afrika</a> (<a href="Simbabwe" title="Simbabwe">Simbabwe</a>)</li>
<li><a href="Nordamerika" title="Nordamerika">Nordamerika</a> (<a href="Arizona" title="Arizona">Arizona</a>)</li></ul>
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<th><a href="Systematik_(Biologie)" title="Systematik (Biologie)">Systematik</a>
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<td><a href="Dinosaurier" title="Dinosaurier">Dinosaurier</a> (Dinosauria)
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<td><a href="Echsenbeckensaurier" title="Echsenbeckensaurier">Echsenbeckensaurier</a> (Saurischia)
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<td><a href="Theropoda" title="Theropoda">Theropoda</a>
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<td><a href="Neotheropoda" title="Neotheropoda">Neotheropoda</a>
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<td><a href="Coelophysoidea" title="Coelophysoidea">Coelophysoidea</a>
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<td><i>Megapnosaurus</i>
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<th><a href="Nomenklatur_(Biologie)" title="Nomenklatur (Biologie)">Wissenschaftlicher Name</a>
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<td class="taxo-name"><i>Megapnosaurus</i>
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<td class="Person">Ivie, Slipinski & Wegrzynowicz, 2001
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<th><a href="Art_(Biologie)" title="Art (Biologie)">Arten</a>
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<td>
<ul><li><i>Megapnosaurus rhodesiensis</i></li>
<li><i>Megapnosaurus kayentakatae</i></li></ul>
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<p><i><b>Megapnosaurus</b></i> („große tote Echse“), früher <i>Syntarsus</i>, ist eine Gattung kleiner <a href="Theropoda" title="Theropoda">theropoder Dinosaurier</a> aus dem frühen <a href="Jura_(Geologie)" title="Jura (Geologie)">Unterjura</a>, die den <i><a href="Coelophysis" title="Coelophysis">Coelophysis</a></i>-Arten sehr ähneln.
</p><p>Bislang wurden zwei Arten beschrieben, <i>Megapnosaurus rhodesiensis</i> als <i>Syntarsus rhodesiensis</i> 1969<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> und <i>Megapnosaurus kayentakatae</i> als <i>Syntarsus kayentakatae</i> 1989<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>.
</p><p>Im Jahr 2001 wurde <i>Syntarsus</i> von den <a href="Entomologie" class="mw-redirect" title="Entomologie">Entomologen</a> Ivie, Slipinski und Wegrzynowicz in <i>Megapnosaurus</i> umbenannt, nachdem sich herausgestellt hatte, dass der ursprüngliche Gattungsname bereits 1869 für einen Käfer vergeben worden war (<i>Syntarsus</i> (Raath, 1969)).<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Merkmale">Merkmale</h2></div>
<p><i>Megapnosaurus</i> unterscheidet sich von <i><a href="Coelophysis" title="Coelophysis">Coelophysis</a></i> unter anderem durch seine verwachsenen Fußknochen, seine etwas geringere Größe sowie durch die zwei halbmondförmigen Knochenkämme auf dem Schädel. Bei gut zwei Metern Länge erreichte er ein Gewicht von ungefähr 15 Kilogramm.
</p>
<div class="mw-heading mw-heading2"><h2 id="Systematik">Systematik</h2></div>
<p><i>Megapnosaurus</i> gehört zur <a href="Coelophysoidea" title="Coelophysoidea">Coelophysoidea</a>, einer Gruppe primitiver <a href="Theropoda" title="Theropoda">Theropoden</a>. Er ist sehr nahe mit <i><a href="Coelophysis" title="Coelophysis">Coelophysis</a></i> verwandt. <a href="Kladogramm" class="mw-redirect" title="Kladogramm">Kladogramm</a> nach Tykoski und Rowe (2004):<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
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<td style="min-width:1em; border-bottom:2px solid; vertical-align:bottom; text-align:center;"> <b><a href="Coelophysoidea" title="Coelophysoidea">Coelophysoidea</a></b>
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<p> <i><a href="Dilophosaurus" title="Dilophosaurus">Dilophosaurus</a></i>
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<p> <i><a href="Liliensternus" title="Liliensternus">Liliensternus</a></i>
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<p> <i><a href="Procompsognathus" title="Procompsognathus">Procompsognathus</a></i>
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<td style="border-left:2px solid; border-bottom:2px solid; vertical-align:bottom; text-align:center;"> <a href="Coelophysidae" class="mw-redirect" title="Coelophysidae">Coelophysidae</a>
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<p> <i>Segisaurus</i>
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<p> <i><a href="Coelophysis" title="Coelophysis">Coelophysis</a></i>
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<p> <i><b>Megapnosaurus rhodesiensis</b></i>
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<p> <i><b>Megapnosaurus kayentakatae</b></i>
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<div class="mw-heading mw-heading2"><h2 id="Literatur">Literatur</h2></div>
<ul><li>Randall B. Irmis: <i>First report of Megapnosaurus (Theropoda: Coelophysoidea) from China.</i> In: <i>PaleoBios.</i> Bd. 24, Nr. 3, 2004, <span class="-print"><a href="Internationale_Standardnummer_f%C3%BCr_fortlaufende_Sammelwerke" title="Internationale Standardnummer für fortlaufende Sammelwerke">ISSN</a> <span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://zdb-katalog.de/list.xhtml?t=iss%3D%220031-0298%22&key=cql">0031-0298</a></span></span>, S. 11–18, <a rel="nofollow" class="external text" href="http://ist-socrates.berkeley.edu/~irmisr/megapno.pdf">Volltext (PDF; 881 kB)</a>.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-paul_10-1"><span class="mw-cite-backlink"><a href="#cite_ref-paul_10_1-0">↑</a></span> <span class="reference-text"><a href="Gregory_S._Paul" title="Gregory S. Paul">Gregory S. Paul</a>: <i>The Princeton Field Guide To Dinosaurs.</i> Princeton University Press, Princeton NJ 2010, ISBN 978-0-691-13720-9, S. 73–74, <a rel="nofollow" class="external text" href="https://press.princeton.edu/books/hardcover/9780691167664/the-princeton-field-guide-to-dinosaurs">Online</a>.</span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Michael A. Raath: <i>A new Coelurosaurian dinosaur from the Forest Sandstone of Rhodesia.</i> In: <i>National Museums of Southern Rhodesia. Arnoldia.</i> Bd. 4, Nr. 28, 1969, <span class="-print"><a href="Internationale_Standardnummer_f%C3%BCr_fortlaufende_Sammelwerke" title="Internationale Standardnummer für fortlaufende Sammelwerke">ISSN</a> <span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://zdb-katalog.de/list.xhtml?t=iss%3D%220066-7781%22&key=cql">0066-7781</a></span></span>, S. 1–25.</span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a href="Timothy_Rowe" title="Timothy Rowe">Timothy Rowe</a>: <i>A new species of theropod dinosaur Syntarsus from the Early Jurassic Kayenta Formation of Arizona.</i> In: <i>Journal of Vertebrate Paleontology.</i> Bd. 9, Nr. 2, 1989, <span class="-print"><a href="Internationale_Standardnummer_f%C3%BCr_fortlaufende_Sammelwerke" title="Internationale Standardnummer für fortlaufende Sammelwerke">ISSN</a> <span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://zdb-katalog.de/list.xhtml?t=iss%3D%220272-4634%22&key=cql">0272-4634</a></span></span>, S. 125–136, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1080/02724634.1989.10011748">10.1080/02724634.1989.10011748</a></span>.</span>
</li>
<li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text">Michael A. Ivie, Stanisław A. Slipinski, Piotr Wegrzynowicz: <i>Generic homonyms in the Colydiinae (Coleoptera: Zopheridae).</i> In: <i>Insecta Mundi.</i> Bd. 15, 2001, <span class="-print"><a href="Internationale_Standardnummer_f%C3%BCr_fortlaufende_Sammelwerke" title="Internationale Standardnummer für fortlaufende Sammelwerke">ISSN</a> <span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://zdb-katalog.de/list.xhtml?t=iss%3D%220749-6737%22&key=cql">0749-6737</a></span></span>, S. 63–64.</span>
</li>
<li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.dinodata.org/Cladograms/ceratosauria_tykoski_rowe_2004.jpg">Innere und Äußere Systematik der Coelophysoidea</a></span>
</li>
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