{"id":615392,"date":"2026-01-18T17:22:45","date_gmt":"2026-01-18T16:22:45","guid":{"rendered":"https:\/\/cronologia-universale.it\/541-million-bc-now\/"},"modified":"2026-01-18T17:22:45","modified_gmt":"2026-01-18T16:22:45","slug":"635-540-million-bc","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/","title":{"rendered":"635 &#8211; 540 million BC"},"content":{"rendered":"<p>The Ediacaran fauna (Australia) represents a completely distinct experiment in multicellular life, which will ultimately end with the Late Precambrian extinction. These are species that thrive on the seafloor, unrelated to any currently existing species. They are two-dimensional organisms, an alternative solution to the problem of gaining space: life could have taken the Ediacaran route or the modern, 3D route, but the former will be totally defeated after a long success, and we don&#8217;t know why. If the Ediacaran route had continued to thrive, we would have hardly ever developed internal organs, and animal life would have remained at the level of sheets and pancakes&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Ediacaran fauna (Australia) represents a completely distinct experiment in multicellular life, which will ultimately&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[39],"tags":[],"class_list":["post-615392","post","type-post","status-publish","format-standard","hentry","category-ge-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>635 - 540 million BC - Cronologia Universale<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"635 - 540 million BC - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"The Ediacaran fauna (Australia) represents a completely distinct experiment in multicellular life, which will ultimately...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/\" \/>\n<meta property=\"og:site_name\" content=\"Cronologia Universale\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-18T16:22:45+00:00\" \/>\n<meta name=\"author\" content=\"Rick\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rick\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/\",\"url\":\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/\",\"name\":\"635 - 540 million BC - Cronologia Universale\",\"isPartOf\":{\"@id\":\"https:\/\/cronologia-universale.it\/#website\"},\"datePublished\":\"2026-01-18T16:22:45+00:00\",\"author\":{\"@id\":\"https:\/\/cronologia-universale.it\/#\/schema\/person\/f510f53010edc7a70b16caecf1c4af03\"},\"breadcrumb\":{\"@id\":\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cronologia-universale.it\/en\/635-540-million-bc\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cronologia-universale.it\/en\/universal-cronology\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"635 &#8211; 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