{"id":21,"date":"2018-01-10T22:00:47","date_gmt":"2018-01-10T21:00:47","guid":{"rendered":"http:\/\/baustelle.evolutionsweg.de\/?p=21"},"modified":"2025-08-18T23:16:38","modified_gmt":"2025-08-18T21:16:38","slug":"kieferbildung-der-wirbeltiere","status":"publish","type":"post","link":"https:\/\/evolutionsweg.de\/gb\/kieferbildung-der-wirbeltiere\/","title":{"rendered":"Vertebrates Jaw Formation"},"content":{"rendered":"<p class=\"Jahre_Meter\">420 million years before today<br>\n<img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4451 alignnone\" src=\"https:\/\/evolutionsweg.de\/wp-content\/uploads\/10_Kiefer-300x33.png\" alt width=\"300\" height=\"33\" srcset=\"https:\/\/evolutionsweg.de\/wp-content\/uploads\/10_Kiefer-300x33.png 300w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/10_Kiefer-768x84.png 768w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/10_Kiefer-150x17.png 150w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/10_Kiefer.png 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/p>\n<p class=\"Zeitalter\">Geolo\u00adgical era: Paleo\u00adzoic \/ Silurian<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3960 size-full alignleft\" src=\"https:\/\/evolutionsweg.de\/wp-content\/uploads\/Wegpunkte\/10.jpg\" alt width=\"920\" height=\"384\" srcset=\"https:\/\/evolutionsweg.de\/wp-content\/uploads\/Wegpunkte\/10.jpg 920w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Wegpunkte\/10-300x125.jpg 300w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Wegpunkte\/10-768x321.jpg 768w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Wegpunkte\/10-150x63.jpg 150w\" sizes=\"auto, (max-width: 920px) 100vw, 920px\">At the begin\u00adning of the Silurian, verteb\u00adrates develop movable jaws that allow them to grasp, hold and chop food. This opens up completely new feed\u00ading possib\u00adil\u00adit\u00adies for the jawed anim\u00adals. Bone scales form teeth that can sit on the edges of the jaws, in the oral cavity or in the gullet. This devel\u00adop\u00adment is so success\u00adful that today there are only two jawless verteb\u00adrate groups (lampreys and hagfish).<br>\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-607 alignleft\" src=\"http:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur.png\" alt width=\"278\" height=\"143\" srcset=\"https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur.png 2409w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-300x155.png 300w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-1024x528.png 1024w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-768x396.png 768w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-1536x791.png 1536w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-2048x1055.png 2048w, https:\/\/evolutionsweg.de\/wp-content\/uploads\/Kontinente\/400_Silur-150x77.png 150w\" sizes=\"auto, (max-width: 278px) 100vw, 278px\"><\/p>\n<p class=\"Geoinfo\">After the end of the Ice Age at the begin\u00adning of the Silurian, a warm temper\u00adate climate prevails with a global aver\u00adage temper\u00adat\u00adure of about 17&nbsp;\u00b0C. For the first time, the oxygen concen\u00adtra\u00adtion rises to 14&nbsp;%, while the carbon diox\u00adide concen\u00adtra\u00adtion drops below 0.4&nbsp;%. The contin\u00adent Euramer\u00adica (Laur\u00adus\u00adsia) is formed from the land masses Lauren\u00adtia and Baltica.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>At the begin\u00adning of the Silurian, verteb\u00adrates develop movable jaws that allow them to grasp, hold and chop food. This opens up completely new feed\u00ading possib\u00adil\u00adit\u00adies for the jawed animals.<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/evolutionsweg.de\/gb\/kieferbildung-der-wirbeltiere\/\">\u2026mehr dazu<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":3826,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wegpunkte"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"gb","enabled_languages":["de","fr","gb","pl"],"languages":{"de":{"title":true,"content":true,"excerpt":true},"fr":{"title":true,"content":true,"excerpt":true},"gb":{"title":true,"content":true,"excerpt":true},"pl":{"title":true,"content":true,"excerpt":true}}},"modified_by":"Administrator","_links":{"self":[{"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/posts\/21","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/comments?post=21"}],"version-history":[{"count":0,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/posts\/21\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/media\/3826"}],"wp:attachment":[{"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/media?parent=21"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/categories?post=21"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/evolutionsweg.de\/gb\/wp-json\/wp\/v2\/tags?post=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}