{"id":13939,"date":"2016-04-27T14:00:01","date_gmt":"2016-04-27T14:00:01","guid":{"rendered":"https:\/\/cnpem.staging.wpengine.com\/?p=13939"},"modified":"2022-01-21T15:58:51","modified_gmt":"2022-01-21T18:58:51","slug":"oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil","status":"publish","type":"post","link":"https:\/\/cnpem.br\/en\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/","title":{"rendered":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil"},"content":{"rendered":"

Forbes<\/a>, 20\/04\/2016<\/p>\n

Shaena Montanari<\/a><\/p>\n

Did these fossils have a change of heart? Extremely well-preserved fossils and detailed imaging technology has allowed a team of scientists from Brazil, Sweden, and France to peer inside of a 113 million year old fish and view\u00a0the oldest vertebrate chambered heart ever discovered. This research is presented this week in the journal eLife<\/a><\/em> lead by co-first authors Lara Maldanis and Murilo Carvalho at the Brazilian Biosciences National Laboratory in Campinas, Brazil.<\/p>\n

Research into the evolution of organ systems that are mainly comprised of\u00a0soft parts is\u00a0often stymied by the fact they are not easily\u00a0preserved in the fossil record\u2014although recent close examination of specimens with advanced imaging and microscopy techniques shows these structures may be preserved more often than previously though. Last year, for example, researchers in China were able to uncover a 540 million year old example of a central nervous system<\/a> in a fossilized arthropods.<\/p>\n

Up until this point though, no diagnosable heart tissue was ever found in a vertebrate. Some may remember the dinosaur called Willo on display in the North Carolina Museum of Natural Sciences that, at first, was said to possess a fossilized heart in its chest cavity. This claim was later debunked in 2011<\/a>\u2014the heart is merely an iron rich concretion of environmental origin.<\/p>\n

\"elife-14698-fig1-v1-1200x1585\"<\/a>

Figure 1 from Maldanis and Carvalho et al. 2016. Panels A and B are 3D reconstructions of one of the specimens studied in the x-ray synchothron. Panels c,d,e, and f are sections through the fish body with cardiac tissue highlighted in blue. (Permission CC BY 4.0 eLife)<\/p><\/div>\n

This is why the find of a fossilized vertebrate heart in two specimens of a\u00a0Cretaceous fish from Brazil, Rhacolepis buccalis<\/em>, is so remarkable. Studying cardiac evolution in vertebrates is nearly impossible. The heart, such a critically important organ to the existance\u00a0of the full range of vertebrate life, typically can only be observed from its\u00a0modern-day state. Now, the heart of Rhacolepis<\/em> can be viewed in great detail thanks to the synchrotron, a futuristic-sounding X-ray scanner that has revolutionized what paleontologists can learn about previously hidden structures in fossils.<\/p>\n

The two specimens of Rhacolepis<\/em> in this study were found in nodules, meaning they were almost fully encased in rock. This makes the fossils hard to study up close, but also preserves them in full 3D glory. Thanks to the synchrotron, Maldanis and Carvalho were even able to count the number of valve rows present in its heart. Rhacolepis<\/em> belongs to the class of fish that makes up 99% of fish species called actinopterygians, or \u201cray-finned fishes\u201d. Examining the heart of Rhacolepis<\/em> allows the cardiac morphology of ray-finned fishes to be traced over millions of years of evolutionary history.<\/p>\n

Repercuss\u00e3o: Gadgetmash<\/a><\/p>\n

<\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Forbes, 20\/04\/2016 Shaena Montanari Did these fossils have a change of heart? Extremely well-preserved fossils and detailed imaging technology has allowed a team of scientists from Brazil, Sweden, and France…<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":"","_links_to":"","_links_to_target":""},"categories":[1163,179],"tags":[],"class_list":["post-13939","post","type-post","status-publish","format-standard","hentry","category-clipping-cnpem","category-clipping-lnbio","category-1163","category-179","description-off"],"acf":[],"yoast_head":"\nOldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM<\/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:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM\" \/>\n<meta property=\"og:description\" content=\"Forbes, 20\/04\/2016 Shaena Montanari Did these fossils have a change of heart? Extremely well-preserved fossils and detailed imaging technology has allowed a team of scientists from Brazil, Sweden, and France…\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/\" \/>\n<meta property=\"og:site_name\" content=\"CNPEM\" \/>\n<meta property=\"article:published_time\" content=\"2016-04-27T14:00:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-01-21T18:58:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg\" \/>\n<meta name=\"author\" content=\"livia goncalves\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"livia goncalves\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/\"},\"author\":{\"name\":\"livia goncalves\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/#\\\/schema\\\/person\\\/5bc6aa346db3eace1e3d5d061a71fb8d\"},\"headline\":\"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil\",\"datePublished\":\"2016-04-27T14:00:01+00:00\",\"dateModified\":\"2022-01-21T18:58:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/\"},\"wordCount\":473,\"image\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cnpem.staging.wpengine.com\\\/wp-content\\\/uploads\\\/2016\\\/04\\\/elife-14698-fig1-v1-1200x1585.jpg\",\"articleSection\":[\"CNPEM na M\u00eddia\",\"LNBio na M\u00eddia\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/\",\"url\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/\",\"name\":\"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cnpem.staging.wpengine.com\\\/wp-content\\\/uploads\\\/2016\\\/04\\\/elife-14698-fig1-v1-1200x1585.jpg\",\"datePublished\":\"2016-04-27T14:00:01+00:00\",\"dateModified\":\"2022-01-21T18:58:51+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/#\\\/schema\\\/person\\\/5bc6aa346db3eace1e3d5d061a71fb8d\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cnpem.staging.wpengine.com\\\/wp-content\\\/uploads\\\/2016\\\/04\\\/elife-14698-fig1-v1-1200x1585.jpg\",\"contentUrl\":\"https:\\\/\\\/cnpem.staging.wpengine.com\\\/wp-content\\\/uploads\\\/2016\\\/04\\\/elife-14698-fig1-v1-1200x1585.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"In\u00edcio\",\"item\":\"https:\\\/\\\/cnpem.br\\\/en\\\/home\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/#website\",\"url\":\"https:\\\/\\\/cnpem.br\\\/\",\"name\":\"Centro Nacional de Pesquisa em Energia e Materiais\",\"description\":\"Centro Nacional de Pesquisa em Energia e Materiais\",\"alternateName\":\"CNPEM\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/cnpem.br\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/cnpem.br\\\/#\\\/schema\\\/person\\\/5bc6aa346db3eace1e3d5d061a71fb8d\",\"name\":\"livia goncalves\",\"url\":\"\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/","og_locale":"en_US","og_type":"article","og_title":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM","og_description":"Forbes, 20\/04\/2016 Shaena Montanari Did these fossils have a change of heart? Extremely well-preserved fossils and detailed imaging technology has allowed a team of scientists from Brazil, Sweden, and France…","og_url":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/","og_site_name":"CNPEM","article_published_time":"2016-04-27T14:00:01+00:00","article_modified_time":"2022-01-21T18:58:51+00:00","og_image":[{"url":"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg","type":"","width":"","height":""}],"author":"livia goncalves","twitter_card":"summary_large_image","twitter_misc":{"Written by":"livia goncalves","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#article","isPartOf":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/"},"author":{"name":"livia goncalves","@id":"https:\/\/cnpem.br\/#\/schema\/person\/5bc6aa346db3eace1e3d5d061a71fb8d"},"headline":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil","datePublished":"2016-04-27T14:00:01+00:00","dateModified":"2022-01-21T18:58:51+00:00","mainEntityOfPage":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/"},"wordCount":473,"image":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#primaryimage"},"thumbnailUrl":"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg","articleSection":["CNPEM na M\u00eddia","LNBio na M\u00eddia"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/","url":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/","name":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil - CNPEM","isPartOf":{"@id":"https:\/\/cnpem.br\/#website"},"primaryImageOfPage":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#primaryimage"},"image":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#primaryimage"},"thumbnailUrl":"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg","datePublished":"2016-04-27T14:00:01+00:00","dateModified":"2022-01-21T18:58:51+00:00","author":{"@id":"https:\/\/cnpem.br\/#\/schema\/person\/5bc6aa346db3eace1e3d5d061a71fb8d"},"breadcrumb":{"@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#primaryimage","url":"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg","contentUrl":"https:\/\/cnpem.staging.wpengine.com\/wp-content\/uploads\/2016\/04\/elife-14698-fig1-v1-1200x1585.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/cnpem.br\/oldest-example-of-a-chambered-heart-found-in-a-113-million-year-old-fossil\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"In\u00edcio","item":"https:\/\/cnpem.br\/en\/home\/"},{"@type":"ListItem","position":2,"name":"Oldest Example Of A Chambered Heart Found In A 113 Million Year Old Fossil"}]},{"@type":"WebSite","@id":"https:\/\/cnpem.br\/#website","url":"https:\/\/cnpem.br\/","name":"Centro Nacional de Pesquisa em Energia e Materiais","description":"Centro Nacional de Pesquisa em Energia e Materiais","alternateName":"CNPEM","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cnpem.br\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/cnpem.br\/#\/schema\/person\/5bc6aa346db3eace1e3d5d061a71fb8d","name":"livia goncalves","url":""}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/per0Mi-3CP","_links":{"self":[{"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/posts\/13939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/comments?post=13939"}],"version-history":[{"count":0,"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/posts\/13939\/revisions"}],"wp:attachment":[{"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/media?parent=13939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/categories?post=13939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnpem.br\/en\/wp-json\/wp\/v2\/tags?post=13939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}