{"id":49475,"date":"2018-07-10T09:00:17","date_gmt":"2018-07-10T12:00:17","guid":{"rendered":"http:\/\/patagoniambiental.com.ar\/info\/?p=49475"},"modified":"2018-07-09T20:53:43","modified_gmt":"2018-07-09T23:53:43","slug":"el-dinosaurio-gigante-mas-antiguo-es-sanjuanino","status":"publish","type":"post","link":"https:\/\/patagoniambiental.com.ar\/info\/el-dinosaurio-gigante-mas-antiguo-es-sanjuanino\/","title":{"rendered":"El dinosaurio gigante m\u00e1s antiguo es sanjuanino"},"content":{"rendered":"<div class=\"single-content block-page page-post\">\n<div id=\"post-182892\" class=\"single-post post-182892 post type-post status-publish format-standard has-post-thumbnail hentry category-virales category-sociedad tag-dinosaurio tag-dinosaurios tag-san-juan\">\n<div class=\"entry-content with-share\">\n<div class=\"entry-content-text\">\n<p>SAN JUAN \u2013 Investigadores argentinos presentaron a<strong>\u00a0Ingentia Prima<\/strong>, el primer dinosaurio gigante que habit\u00f3 el planeta hace m\u00e1s de\u00a0<strong>200 millones de a\u00f1os<\/strong>. Supera tres veces el tama\u00f1o de los dinosaurios m\u00e1s grandes del Tri\u00e1sico conocidos hasta ahora. El hallazgo se produjo en el yacimiento de Balde de Leyes, al sudeste de la provincia de San Juan.<br \/>\n<img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-182894\" src=\"https:\/\/cdn-1.adnsur.com.ar\/wp-content\/uploads\/2018\/07\/7B95013E-5265-4190-B462-66718719F08C.jpeg\" alt=\"Dinosaurio gigante\" width=\"600\" height=\"338\" \/><br \/>\nSeg\u00fan se describe en un estudio publicado este lunes en la revista Nature Ecology and Evolution y dado a conocer por la Agencia de Divulgaci\u00f3n Cient\u00edfica (CTyS) de la Universidad de La Matanza, la especie es de una antig\u00fcedad de entre 237 y 201 millones de a\u00f1os, se encuentra entre los primeros saur\u00f3podos gigantes: es cerca de<strong>\u00a0tres veces el tama\u00f1o de los dinosaurios m\u00e1s grandes del Tri\u00e1sico.<\/strong><\/p>\n<p>El estudio estuvo liderado por Cecilia Apaldetti, de la Universidad Nacional de San Juan, en Argentina, en colaboraci\u00f3n con los investigadores Ricardo N.Mart\u00ednez, Ignacio Cerda, Diego Pol y \u00d3scar Alcober. \u201cApenas lo encontramos, advertimos de que se trataba de algo diferente. Hemos encontrado una forma, la primera en ser gigante, entre todos los dinosaurios. Esa es la novedad\u201d, afirm\u00f3 Apaldetti, que agreg\u00f3: \u201cEsta especie muestra una\u00a0<strong>estrategia de crecimiento desconocida hasta ahora<\/strong>\u00a0e indica que el origen del gigantismo se produjo mucho antes de lo que se pensaba\u201d.<\/p>\n<p>El Ingentia Prima -que en lat\u00edn significa la \u201cprimera inmensa\u201d- es una especie de dinosaurio 30 millones de a\u00f1os m\u00e1s longevo que sus primos los titanosaurios, un hallazgo que<strong>\u00a0modifica las ideas que se ten\u00edan sobre c\u00f3mo estas criaturas pudieron alcanzar grandes tama\u00f1os.<\/strong><\/p>\n<p>\u201cAntes de este descubrimiento, se consideraba que el gigantismo hab\u00eda surgido durante el per\u00edodo Jur\u00e1sico, hace 180 millones de a\u00f1os aproximadamente, pero Ingentia prima vivi\u00f3 a fines del Tri\u00e1sico, entre los 210 y 205 millones de a\u00f1os\u201d, precis\u00f3 la autora principal del estudio que se public\u00f3 este lunes en la prestigiosa revista Nature Ecology &amp; Evolution.<\/p>\n<p>La teor\u00eda m\u00e1s extendida afirmaba que la adquisici\u00f3n del \u201ccuerpo gigante\u201d se produjo durante el Jur\u00e1sico y se relacion\u00f3 con numerosos cambios esquel\u00e9ticos presentes en la rama de Eusauropoda. Sin embargo, el nuevo hallazgo revela que el primer pulso hacia el gigantismo en los dinosaurios ocurri\u00f3 m\u00e1s de 30 millones de a\u00f1os antes de la aparici\u00f3n de los primeros saur\u00f3podos modernos.<\/p>\n<p>En esta nueva teor\u00eda se destacan, como factores fundamentales para esta evoluci\u00f3n, una tasa de crecimiento altamente acelerada, un sistema respiratorio mejorado de estilo aviar y modificaciones en la musculatura epaxial vertebral y extremidades posteriores.<\/p>\n<p>Si bien el origen del gigantismo en los saur\u00f3podos modernos fue una etapa fundamental en la evoluci\u00f3n de los dinosaurios, \u201cun registro f\u00f3sil incompleto oculta detalles de este crucial cambio\u201d, se\u00f1ala el estudio.<\/p>\n<p>\u201cEstas averiguaciones muestran que hay m\u00e1s de una manera de \u2018crear\u2019 un dinosaurio gigante y que los ic\u00f3nicos saur\u00f3podos cuentan con una larga historia de innovaci\u00f3n evolutiva tras ellos\u201d, destaca el documento.<\/p>\n<p>Fuente: Clar\u00edn<\/p>\n<\/div>\n<\/div>\n<div class=\"meta-author\">Autor:\u00a0<a class=\"vcard author\" href=\"https:\/\/www.adnsur.com.ar\/quienes-somos\" rel=\"author\"><span class=\"fn\">ADN Sur<\/span><\/a><\/div>\n<div>\n<div class=\"widget widget_reedwanwidgets__imagecode clearfix\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<aside class=\"main-grid right-sidebar sidebar\" role=\"complementary\">\n<div id=\"reedwanwidgets__imagecode-31\" class=\"widget widget_reedwanwidgets__imagecode clearfix\"><\/div>\n<\/aside>\n","protected":false},"excerpt":{"rendered":"<p>SAN JUAN \u2013 Investigadores argentinos presentaron a\u00a0Ingentia Prima, el primer dinosaurio gigante que habit\u00f3 el planeta hace m\u00e1s de\u00a0200 millones [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":49476,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19,1],"tags":[],"class_list":["post-49475","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nacionales","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>El dinosaurio gigante m\u00e1s antiguo es sanjuanino<\/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:\/\/patagoniambiental.com.ar\/info\/el-dinosaurio-gigante-mas-antiguo-es-sanjuanino\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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