{"id":17487,"date":"2026-02-23T10:12:06","date_gmt":"2026-02-23T09:12:06","guid":{"rendered":"https:\/\/clientes.munecarusa.com\/mp\/?p=17487"},"modified":"2026-02-24T13:20:15","modified_gmt":"2026-02-24T12:20:15","slug":"archaeothyris","status":"publish","type":"post","link":"https:\/\/clientes.munecarusa.com\/mp\/archaeothyris\/","title":{"rendered":"Archaeothyris"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00bb1&#8243; custom_padding_last_edited=\u00bboff|phone\u00bb disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbFondo Men\u00fa\u00bb _builder_version=\u00bb4.27.2&#8243; background_color=\u00bb#ff6600&#8243; custom_margin=\u00bb0px||20px||false|false\u00bb custom_padding=\u00bb0px||0px||true|false\u00bb collapsed=\u00bbon\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_section][et_pb_section fb_built=\u00bb1&#8243; custom_padding_last_edited=\u00bbon|phone\u00bb disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbIntroducci\u00f3n\u00bb _builder_version=\u00bb4.27.2&#8243; background_enable_color=\u00bboff\u00bb custom_margin_last_edited=\u00bboff|phone\u00bb custom_padding=\u00bb||0px||false|false\u00bb custom_padding_tablet=\u00bb27px||0px||false|false\u00bb custom_padding_phone=\u00bb37px||||false|false\u00bb collapsed=\u00bbon\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row make_equal=\u00bbon\u00bb custom_padding_last_edited=\u00bbon|phone\u00bb _builder_version=\u00bb4.27.2&#8243; background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb custom_margin=\u00bb||||false|false\u00bb custom_padding=\u00bb||0px||false|false\u00bb custom_padding_tablet=\u00bb||0px||false|false\u00bb custom_padding_phone=\u00bb||10px||false|false\u00bb collapsed=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb|||\u00bb global_colors_info=\u00bb{}\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_post_title meta=\u00bboff\u00bb featured_image=\u00bboff\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb title_font=\u00bb|600||on|||||\u00bb title_text_align=\u00bbcenter\u00bb title_text_color=\u00bb#000000&#8243; title_font_size=\u00bb70px\u00bb title_letter_spacing=\u00bb1px\u00bb custom_margin=\u00bb||10px||false|false\u00bb animation_style=\u00bbslide\u00bb animation_direction=\u00bbbottom\u00bb title_font_size_tablet=\u00bb50px\u00bb title_font_size_phone=\u00bb20px\u00bb title_font_size_last_edited=\u00bbon|phone\u00bb title_text_shadow_style=\u00bbpreset1&#8243; global_colors_info=\u00bb{}\u00bb][\/et_pb_post_title][et_pb_text content_last_edited=\u00bboff|phone\u00bb _builder_version=\u00bb4.27.5&#8243; header_4_font=\u00bb|700||on|||||\u00bb header_4_text_align=\u00bbcenter\u00bb header_4_text_color=\u00bb#ff6600&#8243; header_4_font_size=\u00bb30px\u00bb header_4_line_height=\u00bb1.4em\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb animation_style=\u00bbzoom\u00bb text_font_size_last_edited=\u00bboff|phone\u00bb text_line_height_last_edited=\u00bboff|phone\u00bb header_4_font_size_tablet=\u00bb22px\u00bb header_4_font_size_phone=\u00bb11px\u00bb header_4_font_size_last_edited=\u00bbon|phone\u00bb header_4_text_shadow_style=\u00bbpreset1&#8243; global_colors_info=\u00bb{}\u00bb header_4_text_color__hover_enabled=\u00bboff|hover\u00bb text_text_color__hover_enabled=\u00bboff|desktop\u00bb]<\/p>\n<h4>Reisz, 1972<\/h4>\n<p>[\/et_pb_text][et_pb_divider color=\u00bb#999999&#8243; admin_label=\u00bbSeparador\u00bb _builder_version=\u00bb4.27.0&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb-20px||0px||false|false\u00bb custom_padding=\u00bb||||false|false\u00bb animation_style=\u00bbslide\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=\u00bbFila\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb||||false|false\u00bb custom_padding=\u00bb0px||10px||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb animation_style=\u00bbzoom\u00bb sticky_limit_top=\u00bbrow\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text content_last_edited=\u00bboff|desktop\u00bb disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbTexto\u00bb _builder_version=\u00bb4.27.5&#8243; text_text_color=\u00bb#444444&#8243; background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb text_font_size_tablet=\u00bb16px\u00bb text_font_size_phone=\u00bb14px\u00bb text_font_size_last_edited=\u00bbon|phone\u00bb text_line_height_tablet=\u00bb1.7em\u00bb text_line_height_phone=\u00bb1.6em\u00bb text_line_height_last_edited=\u00bbon|phone\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h2 style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-4309 alignleft\" src=\"https:\/\/clientes.munecarusa.com\/mp\/wp-content\/uploads\/2025\/01\/margen-huella.png\" alt=\"Archaeothyris\" width=\"30\" height=\"50\" \/><\/h2>\n<p>Archaeothyris es uno de los animales m\u00e1s importantes del Carbon\u00edfero Superior, no por su tama\u00f1o ni por su aspecto llamativo, sino por su posici\u00f3n evolutiva. Vivi\u00f3 hace unos 306 millones de a\u00f1os en lo que hoy es Nueva Escocia, en un mundo dominado por bosques pantanosos, anfibios gigantes, insectos colosales y los primeros reptiles. En ese escenario exuberante y h\u00famedo, Archaeothyris representaba algo completamente nuevo: un sin\u00e1psido temprano, uno de los primeros vertebrados terrestres que mostraba la caracter\u00edstica abertura temporal \u00fanica en el cr\u00e1neo que define al linaje que, millones de a\u00f1os despu\u00e9s, dar\u00eda origen a los mam\u00edferos. En otras palabras, Archaeothyris es un pariente lejano, muy lejano, pero directo, de todos los mam\u00edferos modernos, incluidos nosotros.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_3,1_3&#8243; admin_label=\u00bbFila\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb||||false|false\u00bb custom_padding=\u00bb0px||10px||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb2_3&#8243; _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb animation_style=\u00bbzoom\u00bb sticky_limit_top=\u00bbrow\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_image src=\u00bbhttps:\/\/clientes.munecarusa.com\/mp\/wp-content\/uploads\/2026\/02\/Archaeothyris.webp\u00bb alt=\u00bbArchaeothyris\u00bb show_in_lightbox=\u00bbon\u00bb use_overlay=\u00bbon\u00bb overlay_icon_color=\u00bb#ff6600&#8243; hover_overlay_color=\u00bbrgba(255,102,0,0.2)\u00bb align=\u00bbcenter\u00bb force_fullwidth=\u00bbon\u00bb _builder_version=\u00bb4.27.5&#8243; 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_module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb]Era: Paleozoica<br \/>\nPeriodo: Carbon\u00edfero[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbDescubridor\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Reisz, 1972[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbOrigen\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Canad\u00e1[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbGrupo\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Reptil[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbFamilia\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Ophiacodontidae[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_counters bar_bg_color=\u00bb#ff6600&#8243; _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb title_font=\u00bb|700|||||||\u00bb title_text_color=\u00bb#000000&#8243; title_font_size=\u00bb22px\u00bb title_letter_spacing=\u00bb1px\u00bb percent_font=\u00bb|600|||||||\u00bb percent_text_color=\u00bb#FFFFFF\u00bb percent_font_size=\u00bb18px\u00bb percent_letter_spacing=\u00bb1px\u00bb custom_padding=\u00bb15px||15px||true|false\u00bb sticky_limit_bottom=\u00bbcolumn\u00bb title_font_size_tablet=\u00bb19px\u00bb title_font_size_phone=\u00bb16px\u00bb title_font_size_last_edited=\u00bbon|phone\u00bb percent_font_size_tablet=\u00bb16px\u00bb percent_font_size_phone=\u00bb14px\u00bb percent_font_size_last_edited=\u00bbon|phone\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_counter percent=\u00bb22&#8243; _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb bar_background_color_default=\u00bb#ff6600&#8243; use_percentages=\u00bbon\u00bb]Agresividad[\/et_pb_counter][\/et_pb_counters][et_pb_number_counter title=\u00bbMillones de A\u00f1os\u00bb number=\u00bb390&#8243; 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_module_preset=\u00bbdefault\u00bb custom_button=\u00bbon\u00bb button_text_size=\u00bb22px\u00bb button_text_color=\u00bb#FFFFFF\u00bb button_bg_color=\u00bb#ff6600&#8243; button_border_radius=\u00bb0px\u00bb button_font=\u00bb|700|||||||\u00bb button_icon=\u00bb&#x24;||divi||400&#8243; custom_margin=\u00bb0px||||false|false\u00bb custom_padding=\u00bb15px||15px||true|false\u00bb sticky_limit_top=\u00bbcolumn\u00bb sticky_limit_bottom=\u00bbcolumn\u00bb button_text_size_tablet=\u00bb19px\u00bb button_text_size_phone=\u00bb16px\u00bb button_text_size_last_edited=\u00bbon|phone\u00bb button_icon_last_edited=\u00bboff|desktop\u00bb button_on_hover_phone=\u00bbon\u00bb button_on_hover_last_edited=\u00bboff|phone\u00bb custom_css_main_element=\u00bbwidth:100%;\u00bb global_colors_info=\u00bb{}\u00bb button_text_color__hover_enabled=\u00bboff|desktop\u00bb button_bg_color__hover_enabled=\u00bbon|hover\u00bb button_bg_color__hover=\u00bb#660000&#8243; button_bg_enable_color__hover=\u00bbon\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb||||false|false\u00bb custom_padding=\u00bb30px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb animation_style=\u00bbzoom\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text content_last_edited=\u00bboff|desktop\u00bb disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbTexto\u00bb _builder_version=\u00bb4.27.5&#8243; text_text_color=\u00bb#444444&#8243; background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb text_font_size_tablet=\u00bb16px\u00bb text_font_size_phone=\u00bb14px\u00bb text_font_size_last_edited=\u00bbon|phone\u00bb text_line_height_tablet=\u00bb1.7em\u00bb text_line_height_phone=\u00bb1.6em\u00bb text_line_height_last_edited=\u00bbon|phone\u00bb global_colors_info=\u00bb{}\u00bb]El cuerpo de Archaeothyris med\u00eda alrededor de 50 cent\u00edmetros de longitud, con un aspecto general que recordaba a un lagarto robusto, aunque su anatom\u00eda interna ya mostraba rasgos que lo separaban de los reptiles verdaderos. Su cr\u00e1neo era relativamente grande y alargado, con mand\u00edbulas poderosas y dientes afilados, algunos de ellos ligeramente recurvados, lo que indica una dieta carn\u00edvora. No era un superdepredador, pero s\u00ed un cazador activo y oportunista, capaz de capturar insectos grandes, peque\u00f1os tetr\u00e1podos y quiz\u00e1 juveniles de anfibios o reptiles. La presencia de una ventana temporal \u00fanica detr\u00e1s de la \u00f3rbita ocular \u2014el rasgo definitorio de los sin\u00e1psidos\u2014 permit\u00eda una musculatura mandibular m\u00e1s fuerte y eficiente, una ventaja clave en la caza y la alimentaci\u00f3n.<\/p>\n<p>Las extremidades de Archaeothyris eran robustas y estaban orientadas hacia los lados, como en la mayor\u00eda de los tetr\u00e1podos primitivos. Sin embargo, su articulaci\u00f3n y su musculatura sugieren que era m\u00e1s \u00e1gil que muchos de sus contempor\u00e1neos. Pod\u00eda moverse con rapidez entre la vegetaci\u00f3n baja, trepar sobre troncos ca\u00eddos y desplazarse por el suelo h\u00famedo de los bosques carbon\u00edferos. Su cola larga y flexible le proporcionaba equilibrio, especialmente al correr o al girar bruscamente para capturar presas. Aunque no era un animal grande, su agilidad y su mordida poderosa lo convert\u00edan en un depredador eficaz en su nicho ecol\u00f3gico.<\/p>\n<p>El entorno donde vivi\u00f3 Archaeothyris era un paisaje exuberante, dominado por licopodios gigantes como Lepidodendron, helechos arborescentes, colas de caballo de gran tama\u00f1o y una densa capa de hojarasca en descomposici\u00f3n. Los pantanos y canales de agua dulce estaban repletos de peces, anfibios y artr\u00f3podos gigantes, mientras que la superficie terrestre comenzaba a ser colonizada por reptiles tempranos y sin\u00e1psidos primitivos. En este ecosistema complejo, Archaeothyris ocupaba un papel intermedio: no era el mayor depredador, pero s\u00ed uno de los m\u00e1s activos y vers\u00e1tiles. Su capacidad para moverse con soltura en tierra firme le daba acceso a recursos que otros animales m\u00e1s acu\u00e1ticos no pod\u00edan explotar.<\/p>\n<p>Desde el punto de vista evolutivo, Archaeothyris es una figura clave. Pertenece al grupo Ophiacodontidae, uno de los primeros linajes de sin\u00e1psidos. Aunque no es un ancestro directo de los mam\u00edferos modernos, s\u00ed forma parte de la rama basal que, con el tiempo, dar\u00eda lugar a formas m\u00e1s avanzadas como los pelicosaurios (incluyendo a Dimetrodon) y, posteriormente, a los terapsidos, los verdaderos precursores de los mam\u00edferos. Su anatom\u00eda muestra los primeros pasos hacia una mayor eficiencia metab\u00f3lica, una musculatura mandibular m\u00e1s desarrollada y un cr\u00e1neo m\u00e1s especializado. Estos cambios, aparentemente modestos, ser\u00edan fundamentales para la evoluci\u00f3n posterior de los mam\u00edferos.<\/p>\n<p>El registro f\u00f3sil de Archaeothyris proviene principalmente de los famosos acantilados fosil\u00edferos de Joggins, en Nueva Escocia, un yacimiento excepcional que ha preservado troncos huecos, huellas, restos vegetales y esqueletos completos de animales del Carbon\u00edfero Superior. Los f\u00f3siles de Archaeothyris se encontraron en estos troncos, lo que sugiere que utilizaba estos espacios como refugio o como lugar de caza. La preservaci\u00f3n de sus restos ha permitido estudiar con detalle su cr\u00e1neo, su dentici\u00f3n y su esqueleto postcraneal, proporcionando una imagen clara de su anatom\u00eda y su modo de vida.<\/p>\n<p>Archaeothyris tambi\u00e9n es importante porque demuestra que los sin\u00e1psidos \u2014el linaje que conducir\u00eda a los mam\u00edferos\u2014 surgieron muy temprano en la historia de los vertebrados terrestres. Mientras los reptiles di\u00e1psidos comenzaban a diversificarse en m\u00faltiples formas, los sin\u00e1psidos exploraban su propio camino evolutivo, desarrollando adaptaciones que m\u00e1s tarde ser\u00edan esenciales para la vida activa y la regulaci\u00f3n t\u00e9rmica. Aunque Archaeothyris no ten\u00eda pelo, ni metabolismo elevado, ni las caracter\u00edsticas avanzadas de los mam\u00edferos, s\u00ed representa el primer paso en esa direcci\u00f3n.<\/p>\n<p>En conjunto, Archaeothyris es un animal peque\u00f1o pero trascendental. Su anatom\u00eda, su estilo de vida y su posici\u00f3n evolutiva lo convierten en una pieza fundamental para comprender c\u00f3mo surgieron los sin\u00e1psidos y c\u00f3mo comenz\u00f3 la larga historia que culminar\u00eda en los mam\u00edferos modernos. 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custom_margin=\u00bb||10px||false|false\u00bb header_font_size_tablet=\u00bb22px\u00bb header_font_size_phone=\u00bb15px\u00bb header_font_size_last_edited=\u00bbon|tablet\u00bb header_line_height_tablet=\u00bb\u00bb header_line_height_phone=\u00bb1.2em\u00bb header_line_height_last_edited=\u00bbon|phone\u00bb body_font_size_tablet=\u00bb16px\u00bb body_font_size_phone=\u00bb14px\u00bb body_font_size_last_edited=\u00bbon|phone\u00bb body_line_height_tablet=\u00bb1.7em\u00bb body_line_height_phone=\u00bb1.6em\u00bb body_line_height_last_edited=\u00bbon|phone\u00bb header_text_shadow_style=\u00bbpreset1&#8243; global_colors_info=\u00bb{}\u00bb]Paleozoico o tambi\u00e9n era Primaria es una divisi\u00f3n de la escala temporal geol\u00f3gica de m\u00e1s de 290 millones de a\u00f1os de duraci\u00f3n, que se inici\u00f3 hace 542 millones de a\u00f1os. y acab\u00f3 hace unos 251 millones de a\u00f1os.[\/et_pb_blurb][et_pb_button 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1972<\/strong><\/font><\/p>\n<p>Archaeothyris fue un sin\u00e1psido considerado uno de los primeros miembros del linaje que conducir\u00eda a los mam\u00edferos&#8230;<\/p>\n","protected":false},"author":1,"featured_media":17490,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[20],"tags":[],"class_list":["post-17487","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fauna-del-carbonifero"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Archaeothyris | El primero que abri\u00f3 el camino hacia los mam\u00edferos<\/title>\n<meta name=\"description\" content=\"Archaeothyris fue un sin\u00e1psido considerado uno de los primeros miembros del linaje que conducir\u00eda a los mam\u00edferos.\" 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