{"id":7983,"date":"2025-03-20T19:12:12","date_gmt":"2025-03-20T18:12:12","guid":{"rendered":"https:\/\/clientes.munecarusa.com\/mp\/?p=7983"},"modified":"2026-02-17T13:21:27","modified_gmt":"2026-02-17T12:21:27","slug":"james-alvin-jensen","status":"publish","type":"post","link":"https:\/\/clientes.munecarusa.com\/mp\/james-alvin-jensen\/","title":{"rendered":"James Alvin Jensen"},"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=\u00bb4.27.4&#8243; background_color=\u00bb#00ffff\u00bb 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 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=\u00bb4.27.4&#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=\u00bb4.27.4&#8243; header_4_font=\u00bb|700||on|||||\u00bb header_4_text_align=\u00bbcenter\u00bb header_4_text_color=\u00bb#00ffff\u00bb 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; 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Su programa de recolecci\u00f3n de f\u00f3siles en la Universidad Brigham Young, desarrollado durante veintitr\u00e9s a\u00f1os en las regiones de Utah y Colorado, alcanz\u00f3 un volumen tan extraordinario que fue comparado con el de Barnum Brown, el legendario cazador de dinosaurios del Museo Americano de Historia Natural. La prensa lo bautiz\u00f3 como \u201cDinosaurio Jim\u201d, un apodo que reflejaba tanto su carisma como su capacidad para encontrar f\u00f3siles en cantidades que parec\u00edan imposibles para una sola persona.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_3,1_3&#8243; _builder_version=\u00bb4.27.2&#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=\u00bb4.27.2&#8243; _module_preset=\u00bbdefault\u00bb animation_style=\u00bbzoom\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_image src=\u00bbhttps:\/\/clientes.munecarusa.com\/mp\/wp-content\/uploads\/2025\/03\/James-Alvin-Jensen.webp\u00bb alt=\u00bbJames Alvin Jensen\u00bb show_in_lightbox=\u00bbon\u00bb use_overlay=\u00bbon\u00bb overlay_icon_color=\u00bb#00ffff\u00bb hover_overlay_color=\u00bbrgba(0,255,255,0.2)\u00bb align=\u00bbcenter\u00bb force_fullwidth=\u00bbon\u00bb _builder_version=\u00bb4.27.4&#8243; 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} .et_monarch .et_social_shortcode_0 .et_social_icons_container li:hover .et_social_icon, .et_monarch .et_social_shortcode_0 .et_social_networks .et_social_icons_container li:hover .et_social_network_label, .et_monarch .et_social_shortcode_0 .et_social_icons_container li:hover .et_social_networkname, .et_monarch .et_social_rounded.et_social_shortcode_0 .et_social_icons_container li:hover .et_social_count, .et_monarch .et_social_rectangle.et_social_shortcode_0 .et_social_icons_container li:hover .et_social_count { color: #ffffff !important; }<\/style>\n\t\t\t\t\t\n\t\t\t\t\t<ul class=\"et_social_icons_container\"><li class=\"et_social_like\">\n\t\t\t\t\t\t<a href=\"#\" class=\"et_social_follow\" data-social_name=\"like\" data-social_type=\"like\" data-post_id=\"0\" target=\"_blank\">\n\t\t\t\t\t\t\t<i class=\"et_social_icon et_social_icon_like\"><\/i>\n\t\t\t\t\t\t\t<div class=\"et_social_network_label\"><div class=\"et_social_networkname\">Me gusta<\/div><div class=\"et_social_count\">\n\t\t\t\t\t\t<span>0<\/span>\n\t\t\t\t\t\t<span class=\"et_social_count_label\">Likes<\/span>\n\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t<span class=\"et_social_overlay\"><\/span>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li><\/ul>\n\t\t\t\t<\/div>[\/et_pb_code][et_pb_post_title meta=\u00bboff\u00bb featured_image=\u00bboff\u00bb _builder_version=\u00bb4.27.4&#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=\u00bb35px\u00bb title_letter_spacing=\u00bb1px\u00bb custom_margin=\u00bb||0px||false|false\u00bb animation_direction=\u00bbbottom\u00bb title_font_size_tablet=\u00bb30px\u00bb title_font_size_phone=\u00bb20px\u00bb title_font_size_last_edited=\u00bbon|desktop\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_post_title][et_pb_text content_last_edited=\u00bboff|phone\u00bb disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbSubt\u00edtulo\u00bb _builder_version=\u00bb4.27.4&#8243; header_2_font=\u00bb||||||||\u00bb header_3_font=\u00bb|700||on|||||\u00bb header_3_text_align=\u00bbcenter\u00bb header_3_text_color=\u00bb#444444&#8243; header_3_font_size=\u00bb30px\u00bb header_4_font=\u00bb||||||||\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_font_size_last_edited=\u00bboff|phone\u00bb text_line_height_last_edited=\u00bboff|desktop\u00bb header_2_font_size_last_edited=\u00bboff|phone\u00bb header_3_font_size_tablet=\u00bb25px\u00bb header_3_font_size_phone=\u00bb15px\u00bb header_3_font_size_last_edited=\u00bbon|phone\u00bb header_4_font_size_last_edited=\u00bboff|phone\u00bb global_colors_info=\u00bb{}\u00bb header_4_text_color__hover_enabled=\u00bboff|hover\u00bb]<\/p>\n<h3>PALEONT\u00d3LOGOS FAMOSOS<\/h3>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00bb1_3&#8243; 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_module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb]Estados Unidos[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbTiempo\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]1918 \u2013 1998[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbDatos Profesionales\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Trabaj\u00f3 en la Universidad Brigham Young, Colorado y Utah[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bb\u00c1rea de Trabajo\u00bb _builder_version=\u00bb4.27.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb open=\u00bboff\u00bb]Recolecci\u00f3n, preparaci\u00f3n y montaje de dinosaurios del Jur\u00e1sico, incluyendo el desarrollo de sistemas internos de montaje para esqueletos[\/et_pb_accordion_item][et_pb_accordion_item title=\u00bbPrincipal Descubrimiento\u00bb _builder_version=\u00bb4.27.5&#8243; 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quote_font_size=\u00bb18px\u00bb quote_line_height=\u00bb1.8em\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb hover_enabled=\u00bb0&#8243; text_font_size_tablet=\u00bb16px\u00bb text_font_size_phone=\u00bb14px\u00bb text_font_size_last_edited=\u00bbon|desktop\u00bb text_line_height_tablet=\u00bb1.7em\u00bb text_line_height_phone=\u00bb1.6em\u00bb text_line_height_last_edited=\u00bbon|desktop\u00bb link_font_size_tablet=\u00bb16px\u00bb link_font_size_phone=\u00bb14px\u00bb link_font_size_last_edited=\u00bbon|phone\u00bb link_line_height_tablet=\u00bb1.7em\u00bb link_line_height_phone=\u00bb1.6em\u00bb link_line_height_last_edited=\u00bbon|phone\u00bb ul_font_size_tablet=\u00bb16px\u00bb ul_font_size_phone=\u00bb14px\u00bb ul_font_size_last_edited=\u00bbon|phone\u00bb ul_line_height_tablet=\u00bb1.7em\u00bb ul_line_height_phone=\u00bb1.6em\u00bb ul_line_height_last_edited=\u00bbon|phone\u00bb ol_font_size_tablet=\u00bb16px\u00bb ol_font_size_phone=\u00bb14px\u00bb ol_font_size_last_edited=\u00bbon|desktop\u00bb ol_line_height_tablet=\u00bb1.7em\u00bb ol_line_height_phone=\u00bb1.6em\u00bb ol_line_height_last_edited=\u00bbon|phone\u00bb quote_font_size_tablet=\u00bb16px\u00bb quote_font_size_phone=\u00bb14px\u00bb quote_font_size_last_edited=\u00bbon|phone\u00bb quote_line_height_tablet=\u00bb1.7em\u00bb quote_line_height_phone=\u00bb1.6em\u00bb quote_line_height_last_edited=\u00bbon|phone\u00bb global_colors_info=\u00bb{}\u00bb link_text_color__hover_enabled=\u00bbon|desktop\u00bb link_text_color__hover=\u00bb#00ffff\u00bb sticky_enabled=\u00bb0&#8243;]Una de las contribuciones m\u00e1s importantes de James Alvin Jensen fue transformar por completo la forma en que se montaban los esqueletos de dinosaurios en los museos. Hasta mediados del siglo XX, los esqueletos se sosten\u00edan mediante estructuras externas visibles: puntales met\u00e1licos, barras, correas y postes que rodeaban los huesos y restaban naturalidad a las exhibiciones. Jensen ide\u00f3 un sistema completamente nuevo en el que los soportes se ocultaban dentro de los huesos o detr\u00e1s de ellos, permitiendo que los esqueletos se mantuvieran en pie sin apoyos visibles. Este m\u00e9todo, que hoy es est\u00e1ndar en museos de todo el mundo, fue una aut\u00e9ntica revoluci\u00f3n est\u00e9tica y t\u00e9cnica. Su primera gran demostraci\u00f3n de este sistema fue la montura del Kronosaurus queenslandicus en 1956, realizada junto a Alfred Sherwood Romer y Lewis. El proyecto fue tan complejo que incluso hubo que reforzar el edificio con una enorme viga de acero para soportar el peso de la estructura. Jensen integr\u00f3 todas las barras y refuerzos dentro de los huesos o detr\u00e1s de ellos, y adem\u00e1s dise\u00f1\u00f3 una pared trasera curva sin esquinas para crear un efecto visual de profundidad infinita, logrando que el esqueleto pareciera flotar en el espacio.<\/p>\n<p>James Alvin Jensen tambi\u00e9n dej\u00f3 su nombre en la taxonom\u00eda de los dinosaurios. Se le atribuye el nombramiento y descripci\u00f3n de especies tan emblem\u00e1ticas como Supersaurus (1985), uno de los dinosaurios m\u00e1s largos jam\u00e1s descubiertos, y Torvosaurus (1979), descrito junto a Peter Galton, un gran ter\u00f3podo del Jur\u00e1sico Superior. Su trabajo de campo fue extraordinariamente prol\u00edfico. En Argentina descubri\u00f3 el holotipo de Probainognathus jenseni en la Formaci\u00f3n Cha\u00f1ares, un f\u00f3sil clave para entender la transici\u00f3n entre reptiles y mam\u00edferos. En la Ant\u00e1rtida recuper\u00f3 un maxilar de Lystrosaurus en Coalsack Bluff, un hallazgo importante para reconstruir la distribuci\u00f3n de la fauna del Tri\u00e1sico temprano. A partir de 1972 centr\u00f3 la mayor parte de su actividad en la cantera de Dry Mesa, en Colorado, uno de los yacimientos m\u00e1s ricos de Am\u00e9rica del Norte en la segunda mitad del siglo XX. All\u00ed recuper\u00f3 huesos gigantescos, v\u00e9rtebras colosales y restos de m\u00faltiples especies que ampliaron enormemente el conocimiento del Jur\u00e1sico Superior.<\/p>\n<p>En 1973, la Universidad Brigham Young colabor\u00f3 con Steve y John Linton para producir el documental The Great Dinosaur Discovery, que mostraba los hallazgos de Jensen en Dry Mesa. Se estren\u00f3 en el Teatro Egipcio de Delta, Colorado, y posteriormente se emiti\u00f3 en numerosos canales de televisi\u00f3n estadounidenses. M\u00e1s tarde se cre\u00f3 una versi\u00f3n educativa de 24 minutos que se difundi\u00f3 ampliamente a partir de 1976, contribuyendo a popularizar la figura de Jensen y a mostrar al p\u00fablico la magnitud de sus descubrimientos. Este documental fue uno de los primeros en mostrar el trabajo paleontol\u00f3gico moderno desde dentro, con un enfoque casi cinematogr\u00e1fico.<\/p>\n<p>Adem\u00e1s de su innovaci\u00f3n en el montaje de esqueletos, Jensen introdujo nuevas t\u00e9cnicas en la preparaci\u00f3n de f\u00f3siles. En 1958 fue pionero en el uso de espuma r\u00edgida industrial para realizar moldes de huesos de dinosaurio, una t\u00e9cnica que refin\u00f3 mientras trabajaba en el Museo Peabody de Harvard. Public\u00f3 sus resultados en 1961, y su m\u00e9todo se convirti\u00f3 en una herramienta valiosa para la reproducci\u00f3n de f\u00f3siles fr\u00e1giles. Su experiencia como escultor \u2014trabajaba en piedra y metal\u2014 le permiti\u00f3 aplicar conocimientos art\u00edsticos a la paleontolog\u00eda. Sus pinturas pastel y acr\u00edlicas, inspiradas en paisajes, flores y culturas ind\u00edgenas americanas, se exhibieron desde Alaska hasta Florida. En 1972, la Humble Oil Company lo incluy\u00f3 entre los artistas m\u00e1s destacados de la era previa a la Segunda Guerra Mundial.<\/p>\n<p>El \u00e9xito de James Alvin Jensen en el campo se debi\u00f3 en parte a su relaci\u00f3n con los llamados \u201csabuesos de roca\u201d, aficionados locales que recorr\u00edan miles de kil\u00f3metros cada a\u00f1o en busca de f\u00f3siles. Jensen cultiv\u00f3 amistades con ellos, intercambiando informaci\u00f3n por peque\u00f1os regalos de huesos f\u00f3siles. En varios casos, incluso nombr\u00f3 nuevas especies en honor a quienes lo guiaron hacia los yacimientos. Su capacidad para conectar con la gente tambi\u00e9n se reflej\u00f3 en su labor educativa: recib\u00eda visitantes en sus canteras cada verano, respond\u00eda personalmente cientos de cartas de escolares y animaba a estudiantes de posgrado a dedicarse a la paleontolog\u00eda. Aunque BYU nunca le concedi\u00f3 un puesto formal como profesor, su influencia form\u00f3 a varios paleont\u00f3logos profesionales. El Museo de Paleontolog\u00eda de BYU se construy\u00f3 alrededor de la enorme colecci\u00f3n que Jensen reuni\u00f3 durante d\u00e9cadas.<\/p>\n<p>En sus \u00faltimos a\u00f1os, Jensen se interes\u00f3 profundamente por la transici\u00f3n evolutiva de animales terrestres a formas arb\u00f3reas. Para \u00e9l, el factor clave no eran las plumas, sino la anatom\u00eda del pie y el tobillo, que permit\u00eda agarrarse a ramas, construir nidos, dormir en altura y criar a las cr\u00edas en \u00e1rboles. Estudi\u00f3 extremidades de mam\u00edferos, aves, anfibios y reptiles, incluyendo un elefante reci\u00e9n fallecido que le fue enviado en un vag\u00f3n refrigerado. Sus conclusiones apoyaban la idea de que la evoluci\u00f3n del pie fue el cambio fundamental para la vida arb\u00f3rea. Frustrado con el ambiente acad\u00e9mico estadounidense, public\u00f3 su art\u00edculo \u2014ilustrado con sus propios dibujos\u2014 en una revista cient\u00edfica japonesa.<\/p>\n<p>En 1971 recibi\u00f3 un doctorado honorario por la Universidad Brigham Young, un reconocimiento a su enorme contribuci\u00f3n cient\u00edfica y muse\u00edstica. Su legado incluye t\u00e9cnicas de montaje que hoy son est\u00e1ndar, descubrimientos de especies ic\u00f3nicas, una de las mayores colecciones f\u00f3siles del oeste de Estados Unidos, la formaci\u00f3n de nuevas generaciones de paleont\u00f3logos y una dedicaci\u00f3n incansable a acercar la paleontolog\u00eda al p\u00fablico general. Su vida combin\u00f3 ciencia, arte, exploraci\u00f3n y una pasi\u00f3n inagotable por los dinosaurios.[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1&#8243; disabled_on=\u00bboff|off|off\u00bb admin_label=\u00bbPie de P\u00e1gina\u00bb _builder_version=\u00bb4.27.0&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb||0px||false|false\u00bb custom_padding=\u00bb||0px||false|false\u00bb collapsed=\u00bbon\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row column_structure=\u00bb1_3,1_3,1_3&#8243; use_custom_gutter=\u00bbon\u00bb gutter_width=\u00bb1&#8243; make_equal=\u00bbon\u00bb disabled_on=\u00bbon|on|off\u00bb admin_label=\u00bbPc\u00bb _builder_version=\u00bb4.27.0&#8243; background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb1_3&#8243; _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb|||\u00bb 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