{"id":148842,"date":"2022-10-25T06:23:16","date_gmt":"2022-10-25T11:23:16","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/10\/439-million-year-old-fossil-teeth-overturn-long-held-views-about-evolution"},"modified":"2022-10-25T06:23:16","modified_gmt":"2022-10-25T11:23:16","slug":"439-million-year-old-fossil-teeth-overturn-long-held-views-about-evolution","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/10\/439-million-year-old-fossil-teeth-overturn-long-held-views-about-evolution","title":{"rendered":"439-Million-Year-Old Fossil Teeth Overturn Long-Held Views About Evolution"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/1VOn8g8RGBA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>An international team of scientists has found toothed fish remains that date back 439 million years, which suggests that the ancestors of modern chondrichthyans (sharks and rays) and osteichthyans (ray-and lobe-finned fish) originated far earlier than previously believed.<\/p>\n<p>The findings were recently published in the prestigious journal <em>Nature<\/em>.<\/p>\n<p>A remote location in south China\u2019s Guizhou Province has yielded magnificent fossil findings, including solitary teeth identified as belonging to a new species (Qianodus duplicis) of primitive jawed vertebrate from the ancient Silurian period (about 445 to 420 million years ago). Qianodus, named after the ancient name for the present-day Guizhou, possessed unusual spiral-like dental elements carrying several generations of teeth that were inserted throughout the course of the animal\u2019s life.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An international team of scientists has found toothed fish remains that date back 439 million years, which suggests that the ancestors of modern chondrichthyans (sharks and rays) and osteichthyans (ray-and lobe-finned fish) originated far earlier than previously believed. The findings were recently published in the prestigious journal Nature. A remote location in south China\u2019s Guizhou [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,385],"tags":[],"class_list":["post-148842","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-evolution"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/148842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=148842"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/148842\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=148842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=148842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=148842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}