{"id":4146,"date":"2015-06-26T16:46:24","date_gmt":"2015-06-26T21:46:24","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=4146"},"modified":"2015-06-26T17:53:54","modified_gmt":"2015-06-26T22:53:54","slug":"completing-the-puzzle-of-arthropod-evolution","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/completing-the-puzzle-of-arthropod-evolution\/","title":{"rendered":"Completing the puzzle of arthropod evolution<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_4147\" style=\"width: 292px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/06\/Hallucigenia-reconstruction-963x1024.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4147\" class=\"size-medium wp-image-4147\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/06\/Hallucigenia-reconstruction-963x1024-282x300.jpg\" alt=\"The Hallucigenia sparsa is so bizarre looking that when scientists first reconstructed it they had it upside down and back-to-front. (Image credit: Danielle Dufault)\" width=\"282\" height=\"300\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/06\/Hallucigenia-reconstruction-963x1024-282x300.jpg 282w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/06\/Hallucigenia-reconstruction-963x1024.jpg 963w\" sizes=\"auto, (max-width: 282px) 100vw, 282px\" \/><\/a><p id=\"caption-attachment-4147\" class=\"wp-caption-text\"><em>Hallucigenia sparsa<\/em> is so bizarre looking that when scientists first reconstructed it they had it upside down and back-to-front. (Image credit: Danielle Dufault)<\/p><\/div>\n<p>Newly discovered fossils from the Burgess Shale region are providing scientists with evidence of the evolutionary history of arthropods, a group including insects, spiders and crustaceans. The fossils have also allowed scientists to gather a complete picture of what <em>Hallucigenia<\/em>, an arthropod existing 508 millions years ago, looked like.<\/p>\n<p>The new fossils show that <em>Hallucigenia<\/em>\u00a0had a small but long head, at the end of a thin and long neck. The researchers were also able to determine that the animal had simple eye structures and circular teeth.<\/p>\n<p>These fossils provide the first morphological evidence that arthropods belong in the superphylum Ecdysozoa.<\/p>\n<p><a href=\"http:\/\/www.nature.com\/nature\/journal\/vaop\/ncurrent\/full\/nature14627.html\" target=\"_blank\"><span style=\"text-decoration: underline;\">Original research paper<\/span><\/a>\u00a0published in <em>Nature\u00a0<\/em>on\u00a0<strong>June 24<\/strong><span class=\"aBn\" tabindex=\"0\" data-term=\"goog_453723367\"><span class=\"aQJ\"><strong>, 2015<\/strong>.<\/span><\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Names and affiliations of selected\u00a0authors<\/strong><\/em><\/span><\/p>\n<h4>Martin R. Smith, University of Cambridge, United Kingdom<\/h4>\n<h4>Jean-Bernard Caron, Royal Ontario Museum, &amp;\u00a0University of Toronto, Ontario<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Newly discovered fossils from the Burgess Shale region are providing scientists with evidence of the evolutionary history of arthropods, a group including insects, spiders and crustaceans. The fossils have also allowed scientists to gather a complete picture of what Hallucigenia, an arthropod existing 508 millions years ago, looked like. The new fossils show that Hallucigenia\u00a0had [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4147,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25],"tags":[113,917,265,50],"class_list":["post-4146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest","tag-biology","tag-evolution","tag-fossil","tag-ontario"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/06\/Hallucigenia-reconstruction-963x1024.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-14S","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=4146"}],"version-history":[{"count":2,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4146\/revisions"}],"predecessor-version":[{"id":4155,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4146\/revisions\/4155"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/4147"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=4146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=4146"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=4146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}