{"id":3288676,"date":"2008-07-07T21:47:44","date_gmt":"2008-07-07T22:47:44","guid":{"rendered":"https:\/\/www.ozono21.com\/blog\/3288676\/sin-categoria\/nueva-evidencia-del-parentesco-entre-las-aves-y-los-dinosaurios\/"},"modified":"2026-02-20T13:44:58","modified_gmt":"2026-02-20T11:44:58","slug":"evidencia-del-parentesco-entre-las-aves-y-los-dinosaurios","status":"publish","type":"post","link":"https:\/\/www.ozono21.com\/blog\/medioambiente\/evidencia-del-parentesco-entre-las-aves-y-los-dinosaurios\/","title":{"rendered":"Nueva Evidencia del Parentesco Entre las Aves y los Dinosaurios"},"content":{"rendered":"<p style=\"text-align: justify;\">\n<h2 style=\"text-align: justify;\"><strong><img loading=\"lazy\" decoding=\"async\" style=\"margin: 30px 10px 20px 0px; cursor: hand; border: 0px;\" class=\"alignleft\" title=\"Nueva Evidencia del Parentesco Entre las Aves y los Dinosaurios\" src=\"https:\/\/www.ozono21.com\/blog\/wp-content\/uploads\/2008\/07\/Nueva-Evidencia-del-Parentesco-Entre-las-Aves-y-los-Dinosaurios.jpg\" alt=\"  Parentesco Entre las Aves y los Dinosaurios \" width=\"250\" height=\"158\" \/><a title=\"Ozono en la Cr\u00eda ANIMAL\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/industriales\/cria-animal\/22\/\" target=\"_blank\" rel=\"noopener\"> Parentesco Entre las Aves y los Dinosaurios <\/p>\n<p>El an\u00e1lisis de la secuencia gen\u00e9tica obtenida de la prote\u00edna del f\u00e9mur de un dinosaurio Tiranosaurio rex de 68 millones de a\u00f1os de antig\u00fcedad confirma que este animal comparte un linaje com\u00fan con los pollos, los avestruces, y en menor grado, con los caimanes.<\/p>\n<p> Esto refuerza la teor\u00eda de que los parientes vivos m\u00e1s cercanos de los dinosaurios son las aves modernas.<\/a><\/strong><\/h2>\n<p><\/P><\/p>\n<p>Fuente: NSF (9 de junio de 2008)<\/p>\n<p style=\"text-align: justify;\">La prote\u00edna del dinosaurio fue extra\u00edda de un f\u00e9mur f\u00f3sil de un T. rex descubierto en 2003 por el paleont\u00f3logo John Horner, del Museo de las Rocosas. El hueso se encontr\u00f3 en un terreno rico en f\u00f3siles entre Wyoming y Montana.<\/p>\n<p style=\"text-align: justify;\">\u00abEstos resultados se corresponden con las predicciones hechas sobre la anatom\u00eda del esqueleto, proporcionando la primera evidencia molecular de las relaciones evolutivas de un dinosaurio no aviar\u00bb, recalca uno de los autores del estudio, Chris Organ, investigador en la Universidad de Harvard.<\/p>\n<p style=\"text-align: justify;\">Mary Schweitzer, coautora del estudio, de la Universidad Estatal de Carolina del Norte y del Museo de Ciencias Naturales del mismo estado, descubri\u00f3 por primera vez la preservaci\u00f3n de tejido blando en el hueso del T. rex en el 2005.<\/p>\n<p style=\"text-align: justify;\">Los resultados de la nueva investigaci\u00f3n representan la primera utilizaci\u00f3n de datos moleculares para colocar un dinosaurio no aviar en un \u00e1rbol filogen\u00e9tico, un <BIG><strong><a title=\"Ozono21  Cr\u00eda  ANIMAL\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/industriales\/cria-animal\/22\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u00ab\u00e1rbol de la vida\u00bb en el que se traza la evoluci\u00f3n de las especies.<\/A><\/strong><\/BIG><\/p>\n<p style=\"text-align: justify;\">Los investigadores han determinado que el T. rex es m\u00e1s agrupable con las aves, especialmente con el avestruz y el pollo, que con cualquier otro tipo de organismo estudiado, incluyendo los reptiles modernos, como los caimanes y las iguanas.<\/p>\n<p style=\"text-align: justify;\"><BIG><strong><a title=\"Ozono21  Cr\u00eda  ANIMAL\" href=\"https:\/\/www.ozono21.com\/sectores-pagina\/industriales\/cria-animal\/22\/\" target=\"_blank\" rel=\"noopener noreferrer\">Si bien es cierto que los cient\u00edficos han sospechado durante mucho tiempo que las aves y no los reptiles, son los parientes vivos m\u00e1s cercanos de los dinosaurios, durante a\u00f1os la hip\u00f3tesis dependi\u00f3 fundamentalmente de las similitudes morfol\u00f3gicas entre sus esqueletos.<\/strong><\/p>\n<p>Un ejemplo de un an\u00e1lisis similar es el que demuestra una relaci\u00f3n filogen\u00e9tica cercana entre los extintos mastodontes y los elefantes modernos.<\/A><\/strong><\/BIG><\/p>\n<p><big><strong><\/p>\n<table border=\"3\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td bgcolor=\"#3b7cff\" height=\"25\" width=\"515\" align=\"center\"><strong><a title=\"Acci&oacute;n del OZONO\" target=\"_blank\" href=\"https:\/\/www.ozono21.com\/actualidad-interna\/accion-del-ozono\/423\/\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" alt=\"Noticias Relacionadas\" width=\"600\" height=\"25\" src=\"\/blog\/wp-content\/uploads\/2014\/06\/Noticias-Relacionadas.png\" \/><\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li><a title=\"Crecer M\u00e1s R\u00e1pido Que los Depredadores, Estrategia de Supervivencia Para Algunos Dinosaurios\" href=\"https:\/\/www.ozono21.com\/blog\/medioambiente\/supervivencia-para-algunos-dinosaurios\/\" target=\"_blank\" rel=\"noopener\">Crecer M\u00e1s R\u00e1pido Que los Depredadores, Estrategia de Supervivencia Para Algunos Dinosaurios<\/a><\/li>\n<li><a title=\"Cient\u00edficos noruegos descubren el f\u00f3sil del mayor reptil acu\u00e1tico\" href=\"https:\/\/www.ozono21.com\/blog\/medioambiente\/cientificos-noruegos-descubren-el-fosil-del-mayor-reptil-acuatico\/\" target=\"_blank\" rel=\"noopener\">Cient\u00edficos noruegos descubren el f\u00f3sil del mayor reptil acu\u00e1tico <\/a><\/li>\n<\/ul>\n<p><\/strong><\/big><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_3288676\" class=\"pvc_stats total_only  \" data-element-id=\"3288676\" style=\"\"><i class=\"pvc-stats-icon small\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" 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class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Parentesco Entre las Aves y los Dinosaurios El an\u00e1lisis de la secuencia gen\u00e9tica obtenida de la prote\u00edna del f\u00e9mur de un dinosaurio Tiranosaurio rex de 68 millones de a\u00f1os de antig\u00fcedad confirma que este animal comparte un linaje com\u00fan con &hellip; <a href=\"https:\/\/www.ozono21.com\/blog\/medioambiente\/evidencia-del-parentesco-entre-las-aves-y-los-dinosaurios\/\">Sigue leyendo <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_3288676\" class=\"pvc_stats total_only  \" data-element-id=\"3288676\" style=\"\"><i class=\"pvc-stats-icon small\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 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