{"id":156988,"date":"2018-03-14T17:43:34","date_gmt":"2018-03-14T23:43:34","guid":{"rendered":"http:\/\/prensalibre-com-develop.go-vip.co\/guatevision\/?p=156988"},"modified":"2018-03-14T17:43:34","modified_gmt":"2018-03-14T23:43:34","slug":"hallan-oso-gigante","status":"publish","type":"post","link":"https:\/\/prensalibre-com-develop.go-vip.co\/guatevision\/historico\/hallan-oso-gigante","title":{"rendered":"Hallan oso gigante de fines de Pleistoceno en Argentina"},"content":{"rendered":"<p>El cr\u00e1neo y la mand\u00edbula de un oso gigante que data de fines del Pleistoceno fue descubierto en un yacimiento paleontol\u00f3gico al noroeste de la provincia de Buenos Aires, inform\u00f3 este mi\u00e9rcoles una agencia universitaria de divulgaci\u00f3n cient\u00edfica.<\/p>\n\n<p>&#8220;Encontrar un carn\u00edvoro ya es un hallazgo extraordinario porque siempre est\u00e1n en menor n\u00famero en los ecosistemas. Y dentro de los carn\u00edvoros, los osos no son formas que se encuentran frecuentemente, y menos un cr\u00e1neo completo con mand\u00edbula como se hall\u00f3 ahora en Jun\u00edn (270 km al noroeste)&#8221;, explic\u00f3 el paleont\u00f3logo Leopoldo Soibelzon, investigador del Museo de La Plata.<\/p>\n<p>Soibelzon destac\u00f3 el hallazgo de un cr\u00e1neo completo con mand\u00edbula porque &#8220;lo m\u00e1s frecuente es encontrar un diente, un canino, una falange, un pedazo de hueso largo&#8221;.<\/p>\n<p>Seg\u00fan un comunicado de la Agencia de Divulgaci\u00f3n Cient\u00edfica de la estatal Universidad de la Matanza, se trata de un oso perteneciente al g\u00e9nero de Arectotherium.<\/p>\n<p>&#8220;Este material de Jun\u00edn corresponde seguramente al Pleistoceno tard\u00edo, con una antig\u00fcedad que no supera los 120.000 a\u00f1os, mientras que los osos gigantes de mayor tama\u00f1o existieron en Am\u00e9rica del Sur durante el Pleistoceno temprano, hace un mill\u00f3n de a\u00f1os atr\u00e1s&#8221;, explic\u00f3 el paleont\u00f3logo.<\/p>\n<p>El ejemplar m\u00e1s grande de oso del que se tiene conocimiento pertenece a la especie Arctotherium angustidens, un carn\u00edvoro-omn\u00edvoro que vivi\u00f3 hace 780.000 a\u00f1os y fue descubierto en la ciudad argentina de La Plata (60 km al sur), seg\u00fan el comunicado.<\/p>\n<p>Si bien desde mediados del Pleistoceno, los osos fueron disminuyendo de tama\u00f1o, &#8220;en comparaci\u00f3n al tama\u00f1o de los osos actuales, este ejemplar de Jun\u00edn tambi\u00e9n era gigantesco&#8221;, sostuvo Soibelzon.<\/p>\n<p>El yacimiento de Jun\u00edn se encuentra a la vera del r\u00edo Salado y se extiende unos 10 kil\u00f3metros entre dos lagunas.<\/p>\n<p>La semana pasada en ese sitio, en medio de numerosos f\u00f3siles de animales herb\u00edvoros que datan de unos 10.000 a\u00f1os, se encontraron fragmentos de una falange y un metapodio (huesos de la pata) de un tigre dientes de sable, seg\u00fan el parte.<\/p>\n<h5>ls\/nn\/tm<\/h5>\n<h5 class=\"copyright\">\u00a9 Agence France-Presse<\/h5>\n","protected":false},"excerpt":{"rendered":"<p>Se trata de un carn\u00edvoro-omn\u00edvoro que vivi\u00f3 hace 780.000 a\u00f1os, el oso gigante fue descubierto en la ciudad argentina de La Plata, 60 km al sur.<\/p>\n","protected":false},"author":218,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[],"etiqueta":[],"class_list":["post-156988","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - 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