How did dinosaurs sit down?


	How did dinosaurs sit down?

JohnWaterman

3-6-2009 11:36 AM

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3-6-2009 12:15 PM

tanyamm

Great information for all those young dinosaur enthusiasts out there. I'm going to show this to my grandchildren.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/57279659-a932-4ca6-96f6-7437254f270d/93F2A994-047D-4AC9-AF77-76A6BA8A46C5/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php" href="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php" style="font-size: 11px;">scienceblogs.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php"><P class="lead">That question has an answer: they crouched like birds. A 198 million year old fossil trackway from Utah has preserved a pring of a theropod dinosaur taking a break, resting with hands curled inward and knuckle down, and legs bent. Except for the forelimbs, of course, it's very birdlike.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php"><DIV class="captionedfigure"><IMG height="301" width="420" alt="dilophosaur.jpeg" src="http://scienceblogs.com/pharyngula/upload/2009/03/dilophosaur.jpeg" />
Restoration of Early Jurassic environment preserved at the SGDS, with the theropod <I>Dilophosaurus wetherilli</I> in bird-like resting pose, demonstrating the manufacture of SGDS.18.T1 resting trace.</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php"><P>Here's the section of the trace fossil they used to reconstruct the animal's posture.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/scienceblogs.com/img/B9BEBE72-C093-4131-925F-7832D71B0997" alt="trackway.jpeg" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">A, Overhead, slightly oblique angle photograph of SGDS.18.T1 resting trace. Note normal <I\>Eubrontes</I\> track cranial to resting traces (top center) made by track maker during first step upon getting up</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">B, Schematic</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">first resting traces</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">in red, second (shuffling, pes only) traces in gold</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">final resting traces</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">in green</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/pharyngula/2009/03/how_did_dinosaurs_sit_down.php">and tail drag marks made as track maker moved off in blue</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/93F2A994-047D-4AC9-AF77-76A6BA8A46C5/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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