{"id":568643,"date":"2025-11-21T18:21:58","date_gmt":"2025-11-21T21:21:58","guid":{"rendered":"https:\/\/revistapesquisa.fapesp.br\/?p=568643"},"modified":"2025-11-21T18:21:58","modified_gmt":"2025-11-21T21:21:58","slug":"x-ray-of-an-ancient-organism","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/x-ray-of-an-ancient-organism\/","title":{"rendered":"X-ray of an ancient organism"},"content":{"rendered":"<div id=\"attachment_568648\" style=\"max-width: 810px\" class=\"wp-caption alignright vertical\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-568648 size-full\" src=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/11\/RPF-notas-corumbella-2025-07-800.jpg\" alt=\"\" width=\"800\" height=\"584\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/11\/RPF-notas-corumbella-2025-07-800.jpg 800w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/11\/RPF-notas-corumbella-2025-07-800-250x183.jpg 250w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/11\/RPF-notas-corumbella-2025-07-800-700x511.jpg 700w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/11\/RPF-notas-corumbella-2025-07-800-120x88.jpg 120w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">BECKER-KERBER, B. <em>et al<\/em>. <strong>Royal Society Open Science<\/strong>. 2025 <\/span>Close-up of the external walls of <em>Corumbella<\/em>, reconstructed from X-ray images<span class=\"media-credits\">BECKER-KERBER, B. <em>et al<\/em>. <strong>Royal Society Open Science<\/strong>. 2025 <\/span><\/p><\/div>\n<p>The earliest animals with skeletons, which lived between 550 and 539 million years ago in what is now Corumb\u00e1, in the Brazilian state of Mato Grosso do Sul, were elongated and contrary to earlier research, did not have square outlines (<a href=\"https:\/\/revistapesquisa.fapesp.br\/en\/life-protected-by-armor\/\" target=\"_blank\" rel=\"noopener\"><em>see<\/em> Pesquisa FAPESP <em>issue n\u00b0 199<\/em><\/a>). According to X-ray analyses carried out at the Sirius synchrotron light accelerator in Campinas, fossil skeletons of <em>Corumbella werneri<\/em> preserved at the Federal University of Mato Grosso do Sul (UFMS) were formed of cone-shaped cylindrical tubes and walls with a single layer of ring-shaped elements. Similar to other tubular animals from the era\u2014such as <em>Costatubus<\/em>,<em> Hyolithellus<\/em>, and<em> Byronia<\/em>\u2014<em>Corumbella<\/em> could reach up to 10 centimeters (cm) in length, twice the size of organisms from the same genus later unearthed in northern Paraguay. It also was not a cnidarian (the group that includes jellyfish and corals) as previously thought, and no descendants have been identified (<a href=\"https:\/\/royalsocietypublishing.org\/doi\/full\/10.1098\/rsos.250206\" target=\"_blank\" rel=\"noopener\"><em>Royal Society Open Science<\/em><\/a>, May 21).<\/p>\n","protected":false},"excerpt":{"rendered":"X-ray analysis shows that the first animals with skeletons, which lived 55 million years ago, were elongated and tubular","protected":false},"author":475,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1651],"tags":[255],"coauthors":[785],"class_list":["post-568643","post","type-post","status-publish","format-standard","hentry","category-notes","tag-paleontology"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/568643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=568643"}],"version-history":[{"count":2,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/568643\/revisions"}],"predecessor-version":[{"id":568654,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/568643\/revisions\/568654"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=568643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=568643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=568643"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=568643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}