{"id":145893,"date":"2026-11-03T10:58:17","date_gmt":"2026-11-03T13:58:17","guid":{"rendered":"https:\/\/www.noticiasradioreflejos.com.ar\/2021\/?p=145893"},"modified":"2026-11-03T11:02:18","modified_gmt":"2026-11-03T14:02:18","slug":"hallan-posible-sangre-de-dinosaurio-en-un-fosil-de-115-millones-de-anos-en-brasil","status":"publish","type":"post","link":"https:\/\/www.noticiasradioreflejos.com.ar\/2021\/hallan-posible-sangre-de-dinosaurio-en-un-fosil-de-115-millones-de-anos-en-brasil\/","title":{"rendered":"Hallan posible sangre de dinosaurio en un f\u00f3sil de 115 millones de a\u00f1os en Brasil"},"content":{"rendered":"<p>El hallazgo corresponde a un ejemplar de Aratasaurus museunacionali. Los investigadores identificaron restos qu\u00edmicos de hemo, un componente de la hemoglobina que transporta ox\u00edgeno.<!--more--><\/p>\n<p>Un equipo internacional de cient\u00edficos identific\u00f3 estructuras compatibles con gl\u00f3bulos rojos y restos de componentes de la sangre en un f\u00f3sil de <a href=\"https:\/\/noticiasargentinas.com\/interes-general\/impresionante--descubren-en-neuquen-una-nueva-especie-de-dinosaurio-carnivoro-que-media-siete-metros_a6ae47ca945c3c55a7b56ceaa\"><strong>dinosaurio <\/strong><\/a><strong>carn\u00edvoro de 115 millones de a\u00f1os hallado en Brasil.\u00a0<\/strong><\/p>\n<p>El descubrimiento, publicado en la revista <i>PNAS<\/i>, podr\u00eda representar <strong>la evidencia m\u00e1s antigua de este tipo hallada en dinosaurios.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Los restos pertenecen al <strong>Aratasaurus museunacionali<\/strong>, un ejemplar juvenil de unos tres metros de largo cuyos f\u00f3siles fueron encontrados en 2008, en el estado brasile\u00f1o de Cear\u00e1. Se trata de un f\u00f3sil que tiene una historia particular: sobrevivi\u00f3 al incendio que destruy\u00f3 el Museo Nacional de Brasil en 2018.<\/p>\n<h4><strong>C\u00f3mo comprobaron que se trataba de restos de sangre<\/strong><\/h4>\n<p>Los an\u00e1lisis detectaron <strong>hemo<\/strong>, una mol\u00e9cula que forma parte de la hemoglobina y permite transportar ox\u00edgeno en la sangre.<\/p>\n<p><i><strong>\u201cNo hemos encontrado un frasco de sangre de dinosaurio. Hemos encontrado un eco mineral y molecular extraordinario de su biolog\u00eda original<\/strong><\/i><strong>\u201d<\/strong>, explic\u00f3 a la agencia SINC <strong>Kliti Grice<\/strong>, autora principal del trabajo, de la Universidad Curtin.<\/p>\n<p>Seg\u00fan pudo saber la Agencia Noticias Argentinas, para confirmar el hallazgo, los investigadores <strong>estudiaron las estructuras mediante microscop\u00eda electr\u00f3nica y compararon su composici\u00f3n qu\u00edmica con la de la roca que rodeaba el f\u00f3sil<\/strong>. De esa manera, buscaron descartar que se tratara de microorganismos o contaminaci\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<p>Seg\u00fan los cient\u00edficos, <strong>la conservaci\u00f3n pudo haber sido favorecida por una capa de bacterias que limit\u00f3 la descomposici\u00f3n y por minerales que contribuyeron a preservar las estructuras celulares.<\/strong><\/p>\n<p>Sin embargo, los especialistas aclararon que no se conservaron prote\u00ednas completas y que todav\u00eda no puede descartarse totalmente que una parte del hemo tenga origen microbiano. Por eso, <strong>el hallazgo no permite realizar conclusiones definitivas sobre la fisiolog\u00eda del animal.<\/strong><\/p>\n<p>Agencia NA<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El hallazgo corresponde a un ejemplar de Aratasaurus museunacionali. Los investigadores identificaron restos qu\u00edmicos de hemo, un componente de la hemoglobina que transporta ox\u00edgeno.<\/p>\n","protected":false},"author":3,"featured_media":145894,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-145893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-y-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hallan posible sangre de dinosaurio en un f\u00f3sil de 115 millones de a\u00f1os en Brasil - Noticias Radio Reflejos<\/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:\/\/www.noticiasradioreflejos.com.ar\/2021\/hallan-posible-sangre-de-dinosaurio-en-un-fosil-de-115-millones-de-anos-en-brasil\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hallan posible sangre de dinosaurio en un f\u00f3sil de 115 millones de a\u00f1os en Brasil - Noticias Radio Reflejos\" \/>\n<meta property=\"og:description\" content=\"El hallazgo corresponde a un ejemplar de Aratasaurus museunacionali. 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