{"id":555955,"date":"2025-06-30T14:39:18","date_gmt":"2025-06-30T17:39:18","guid":{"rendered":"https:\/\/revistapesquisa.fapesp.br\/?p=555955"},"modified":"2025-06-30T14:39:18","modified_gmt":"2025-06-30T17:39:18","slug":"un-precursor-de-los-dinosaurios-se-preparaba-para-correr-en-dos-patas","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/es\/un-precursor-de-los-dinosaurios-se-preparaba-para-correr-en-dos-patas\/","title":{"rendered":"Un precursor de los dinosaurios se preparaba para correr en dos patas"},"content":{"rendered":"<div id=\"attachment_555915\" style=\"max-width: 810px\" class=\"wp-caption alignright vertical\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-555915 size-full\" src=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-femur2024-11-800.jpg\" alt=\"\" width=\"800\" height=\"557\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-femur2024-11-800.jpg 800w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-femur2024-11-800-250x174.jpg 250w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-femur2024-11-800-700x487.jpg 700w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-femur2024-11-800-120x84.jpg 120w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">Matheus Fernandes Gadelha e Rodrigo Temp M\u00fcller\u2009\/\u2009UFSM<\/span>F\u00e9mur fosilizado<span class=\"media-credits\">Matheus Fernandes Gadelha e Rodrigo Temp M\u00fcller\u2009\/\u2009UFSM<\/span><\/p><\/div>\n<p>Hace unos 237 millones de a\u00f1os, los dinosaurios que anidan en el imaginario actual todav\u00eda no exist\u00edan, pero un peque\u00f1o siles\u00e1urido ya correteaba por los pastizales del actual estado brasile\u00f1o de Rio Grande do Sul. Recientemente descrito, el f\u00f3sil bautizado <em>Gondwanax paraisensis<\/em>, se destaca por ser uno de los m\u00e1s antiguos que existen y porque ha permitido observar ciertas caracter\u00edsticas anat\u00f3micas espec\u00edficas del ejemplar. \u201cEl hueso sacro es m\u00e1s avanzado, posee al menos tres v\u00e9rtebras, y presenta una condici\u00f3n cl\u00e1sica de los dinosaurios que no esper\u00e1bamos hallar en un animal tan antiguo\u201d, explica el paleont\u00f3logo Rodrigo Temp M\u00fcller, de la Universidad Federal de Santa Maria (UFSM). El f\u00e9mur, de menos de 15 cent\u00edmetros de largo, tambi\u00e9n exhibe una protuberancia denominada cuarto troc\u00e1nter, cuya funci\u00f3n es brindar anclaje a los m\u00fasculos que unen la pata con la cola y que se encuentra m\u00e1s desarrollado en los dinosaurios propiamente dichos. Esta morfolog\u00eda \u00f3sea prueba que los siles\u00e1uridos habr\u00edan experimentado diferentes modos de locomoci\u00f3n. \u201cUna de las cosas m\u00e1s interesantes en la evoluci\u00f3n de los dinosaurios es que acabaron convirti\u00e9ndose en animales b\u00edpedos y corredores, una caracter\u00edstica ya visible en los or\u00edgenes del grupo\u201d, subraya el investigador (<em>Gondwana Research<\/em>, septiembre).<\/p>\n<div id=\"attachment_555911\" style=\"max-width: 1150px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-555911 size-full\" src=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-2024-11-1140.jpg\" alt=\"\" width=\"1140\" height=\"559\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-2024-11-1140.jpg 1140w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-2024-11-1140-250x123.jpg 250w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-2024-11-1140-700x343.jpg 700w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/06\/RPF-notas-dinossauro-Gondwanax-paraisensis-2024-11-1140-120x59.jpg 120w\" sizes=\"auto, (max-width: 1140px) 100vw, 1140px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">Matheus Fernandes Gadelha e Rodrigo Temp M\u00fcller\u2009\/\u2009UFSM<\/span>Representaci\u00f3n art\u00edstica de <em>G. paraisensis<\/em><span class=\"media-credits\">Matheus Fernandes Gadelha e Rodrigo Temp M\u00fcller\u2009\/\u2009UFSM<\/span><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"Un precursor de los dinosaurios pose\u00eda caracter\u00edsticas \u00f3seas tambi\u00e9n precursoras del correr sobre dos patas","protected":false},"author":476,"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":[1670],"tags":[324],"coauthors":[786],"class_list":["post-555955","post","type-post","status-publish","format-standard","hentry","category-notas-es","tag-paleontologia-es"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/posts\/555955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/users\/476"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/comments?post=555955"}],"version-history":[{"count":1,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/posts\/555955\/revisions"}],"predecessor-version":[{"id":555956,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/posts\/555955\/revisions\/555956"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/media?parent=555955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/categories?post=555955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/tags?post=555955"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/es\/wp-json\/wp\/v2\/coauthors?post=555955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}