{"id":17675,"date":"2026-02-24T17:25:15","date_gmt":"2026-02-24T16:25:15","guid":{"rendered":"https:\/\/clientes.munecarusa.com\/mp\/?p=17675"},"modified":"2026-02-24T17:26:25","modified_gmt":"2026-02-24T16:26:25","slug":"acanthodes","status":"publish","type":"post","link":"https:\/\/clientes.munecarusa.com\/mp\/acanthodes\/","title":{"rendered":"Acanthodes"},"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>Owen, 1846<\/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=\"Acanthodes\" width=\"30\" height=\"50\" \/><\/h2>\n<p>Acanthodes es uno de los \u00faltimos representantes de los acantodios, un grupo de peces espinosos que floreci\u00f3 durante gran parte del Paleozoico y que, en muchos sentidos, representa un puente evolutivo entre los peces cartilaginosos y los peces \u00f3seos. Vivi\u00f3 entre el Carbon\u00edfero tard\u00edo y el P\u00e9rmico temprano, hace entre 359 y 284 millones de a\u00f1os, y su presencia en Europa, Norteam\u00e9rica, Asia e incluso Australia demuestra que fue un g\u00e9nero exitoso y ampliamente distribuido. Aunque a primera vista pueda parecer un pez modesto, su importancia evolutiva es enorme: Acanthodes muestra una mezcla de caracter\u00edsticas primitivas y avanzadas que lo convierten en una pieza clave para entender la transici\u00f3n entre los primeros vertebrados acu\u00e1ticos y los linajes que dominar\u00edan los mares posteriores.[\/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\/Acanthodes.webp\u00bb alt=\u00bbAcanthodes\u00bb show_in_lightbox=\u00bbon\u00bb use_overlay=\u00bbon\u00bb overlay_icon_color=\u00bb#ff6600&#8243; 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_builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb positioning=\u00bbnone\u00bb animation_style=\u00bbzoom\u00bb animation_direction=\u00bbright\u00bb sticky_limit_top=\u00bbrow\u00bb sticky_limit_bottom=\u00bbrow\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_accordion db_closeable=\u00bbon\u00bb db_initial_state=\u00bball_closed\u00bb open_toggle_text_color=\u00bb#FFFFFF\u00bb open_toggle_background_color=\u00bb#660000&#8243; closed_toggle_text_color=\u00bb#FFFFFF\u00bb closed_toggle_background_color=\u00bb#ff6600&#8243; toggle_icon=\u00bb&#x50;||divi||400&#8243; icon_color=\u00bb#FFFFFF\u00bb use_icon_font_size=\u00bbon\u00bb icon_font_size=\u00bb25px\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb toggle_text_color=\u00bb#FFFFFF\u00bb toggle_font=\u00bb|700|||||||\u00bb toggle_font_size=\u00bb22px\u00bb toggle_letter_spacing=\u00bb1px\u00bb body_font=\u00bb|600|||||||\u00bb body_text_color=\u00bb#FFFFFF\u00bb background_enable_color=\u00bboff\u00bb custom_margin=\u00bb25px||||false|false\u00bb custom_margin_tablet=\u00bb0px||||false|false\u00bb custom_margin_phone=\u00bb0px||||false|false\u00bb custom_margin_last_edited=\u00bbon|phone\u00bb sticky_limit_bottom=\u00bbcolumn\u00bb toggle_font_size_tablet=\u00bb19px\u00bb toggle_font_size_phone=\u00bb16px\u00bb toggle_font_size_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 global_colors_info=\u00bb{}\u00bb][et_pb_accordion_item title=\u00bbEra Geol\u00f3gica\u00bb open=\u00bbon\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb]Era: Paleozoica<br \/>\nPeriodo: P\u00e9rmico[\/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]Owen, 1846[\/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]Australia[\/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]Pez[\/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]Gnathostomata[\/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; 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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 Acanthodes era alargado, hidrodin\u00e1mico y relativamente delgado, alcanzando en algunas especies hasta 30 cent\u00edmetros de longitud, aunque otras pod\u00edan acercarse a los 80 cent\u00edmetros. Su silueta recuerda a la de un pez moderno de aguas tranquilas, con un perfil elegante y una musculatura adaptada a la nataci\u00f3n sostenida m\u00e1s que a la velocidad explosiva. A diferencia de muchos acantodios m\u00e1s antiguos, Acanthodes ten\u00eda un esqueleto predominantemente cartilaginoso, lo que lo acerca a los tiburones, pero tambi\u00e9n pose\u00eda rasgos propios de los peces \u00f3seos, como ciertas estructuras craneales y la disposici\u00f3n de las aletas. Esta combinaci\u00f3n de caracter\u00edsticas lo convierte en un f\u00f3sil clave para estudiar la evoluci\u00f3n temprana de los vertebrados acu\u00e1ticos.<\/p>\n<p>Uno de los rasgos m\u00e1s distintivos de Acanthodes eran sus espinas d\u00e9rmicas, situadas delante de las aletas. Estas espinas, que dan nombre al grupo Acanthodii, no eran m\u00f3viles, pero s\u00ed actuaban como refuerzos estructurales que estabilizaban las aletas durante la nataci\u00f3n. En Acanthodes, estas espinas estaban m\u00e1s reducidas que en otros acantodios, lo que sugiere una transici\u00f3n hacia formas m\u00e1s hidrodin\u00e1micas y menos dependientes de estructuras r\u00edgidas externas. Su piel estaba cubierta por peque\u00f1as escamas romboidales, finamente ornamentadas, que ofrec\u00edan protecci\u00f3n sin comprometer la movilidad. Estas escamas, microsc\u00f3picas y muy resistentes, son uno de los elementos m\u00e1s comunes en el registro f\u00f3sil del g\u00e9nero.<\/p>\n<p>El cr\u00e1neo de Acanthodes es especialmente interesante porque muestra una reducci\u00f3n significativa en la dentici\u00f3n. A diferencia de muchos peces del Paleozoico, Acanthodes carec\u00eda de dientes funcionales o los ten\u00eda extremadamente reducidos. Esto sugiere que su dieta no se basaba en capturar presas grandes o duras, sino en filtrar part\u00edculas peque\u00f1as, plancton, larvas o detritos org\u00e1nicos. Algunos estudios indican que podr\u00eda haber sido un filtrador especializado, utilizando estructuras bucales internas para retener alimento mientras expulsaba el agua. Esta estrategia alimenticia lo habr\u00eda colocado en un nicho ecol\u00f3gico relativamente seguro, lejos de la competencia directa con depredadores o peces de dentici\u00f3n m\u00e1s desarrollada.<\/p>\n<p>La anatom\u00eda interna de Acanthodes revela un animal adaptado a la nataci\u00f3n eficiente. Su columna vertebral cartilaginosa, flexible pero resistente, le permit\u00eda ondular el cuerpo con suavidad, generando un movimiento continuo y poco costoso energ\u00e9ticamente. Sus aletas, sostenidas por radios simples, actuaban como estabilizadores que evitaban el balanceo excesivo. La aleta caudal, probablemente heterocerca moderada, le proporcionaba un impulso constante sin necesidad de movimientos bruscos. Todo esto sugiere que Acanthodes era un nadador de aguas tranquilas, quiz\u00e1 habitante de lagos, r\u00edos lentos o zonas costeras protegidas.<\/p>\n<p>El entorno donde vivi\u00f3 Acanthodes era un mundo en transici\u00f3n. Durante el Carbon\u00edfero tard\u00edo y el P\u00e9rmico temprano, los ecosistemas acu\u00e1ticos estaban cambiando r\u00e1pidamente debido a fluctuaciones clim\u00e1ticas, variaciones en el nivel del mar y la fragmentaci\u00f3n de los h\u00e1bitats. En este contexto, Acanthodes prosper\u00f3 gracias a su dieta flexible y su capacidad para vivir tanto en ambientes marinos como de agua dulce. De hecho, los acantodios en general muestran una tendencia evolutiva hacia la colonizaci\u00f3n de aguas continentales, y Acanthodes es uno de los ejemplos m\u00e1s claros de esta transici\u00f3n. Su presencia en dep\u00f3sitos fluviales y lacustres sugiere que era un pez adaptable, capaz de sobrevivir en condiciones variables de salinidad y temperatura.<\/p>\n<p>Los f\u00f3siles de Acanthodes se encuentran con frecuencia en sedimentos finos, lo que indica que viv\u00eda en aguas tranquilas donde la deposici\u00f3n era lenta y constante. Estos yacimientos han proporcionado cr\u00e1neos bien conservados, escamas articuladas y espinas d\u00e9rmicas completas, lo que ha permitido reconstruir su anatom\u00eda con gran detalle. La calidad de los f\u00f3siles tambi\u00e9n ha permitido estudiar su neurocr\u00e1neo, revelando una organizaci\u00f3n interna sorprendentemente avanzada para un pez del Paleozoico. Esto ha llevado a algunos paleont\u00f3logos a sugerir que Acanthodes podr\u00eda estar m\u00e1s estrechamente relacionado con los peces \u00f3seos que con los cartilaginosos, aunque su posici\u00f3n exacta sigue siendo objeto de debate.<\/p>\n<p>La historia evolutiva de Acanthodes es especialmente relevante porque representa uno de los \u00faltimos cap\u00edtulos de los acantodios antes de su desaparici\u00f3n en la extinci\u00f3n del final del P\u00e9rmico. Mientras muchos grupos de peces del Paleozoico se extinguieron debido a los cambios ambientales extremos, Acanthodes logr\u00f3 persistir hasta casi el final del periodo, lo que sugiere una notable resiliencia ecol\u00f3gica. Su dieta filtradora, su tama\u00f1o moderado y su capacidad para vivir en aguas continentales probablemente contribuyeron a su supervivencia prolongada. Sin embargo, la extinci\u00f3n masiva del P\u00e9rmico-Tri\u00e1sico acab\u00f3 con los acantodios por completo, dejando a Acanthodes como uno de los \u00faltimos representantes de un linaje que hab\u00eda dominado los mares durante m\u00e1s de 150 millones de a\u00f1os.<\/p>\n<p>Acanthodes es, en definitiva, un pez modesto en apariencia pero enorme en importancia evolutiva. Su anatom\u00eda revela un organismo en plena transici\u00f3n, un experimento evolutivo que combina rasgos de tiburones y peces \u00f3seos en un cuerpo elegante y eficiente. Fue un nadador tranquilo en un mundo turbulento, un filtrador adaptable que prosper\u00f3 en aguas cambiantes y un testimonio de la extraordinaria diversidad de formas que florecieron en el Paleozoico. 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