{"id":6400,"date":"2020-12-01T12:22:50","date_gmt":"2020-12-01T12:22:50","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=6400"},"modified":"2020-12-03T09:07:47","modified_gmt":"2020-12-03T09:07:47","slug":"le-nautile-fossile-vivant","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/12\/01\/le-nautile-fossile-vivant\/","title":{"rendered":"Le nautile \u00ab fossile vivant \u00bb ?"},"content":{"rendered":"<p>Le nautile est un mollusque c\u00e9phalopode, comme le poulpe, le calmar, la seiche. Il existe depuis l\u2019\u00e8re Primaire, il y a plus de 400 millions d\u2019ann\u00e9es, et n\u2019a que peu \u00e9volu\u00e9 depuis. Par contre, les ammonites, autres c\u00e9phalopodes, ont disparu \u00e0 la fin de l\u2019\u00e8re Secondaire (mon blog du 24\/11\/2020).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6404\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/12\/Bardintzeff.2006.05.10.02.Digne_.nautiles.low_.s-450x338.jpg\" alt=\"\" width=\"450\" height=\"338\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/12\/Bardintzeff.2006.05.10.02.Digne_.nautiles.low_.s-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/12\/Bardintzeff.2006.05.10.02.Digne_.nautiles.low_.s-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/12\/Bardintzeff.2006.05.10.02.Digne_.nautiles.low_.s-768x576.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/12\/Bardintzeff.2006.05.10.02.Digne_.nautiles.low_.s.jpg 1417w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/>Trois nautiles \u00ab\u00a0batifolant\u00a0\u00bb dans un aquarium de la R\u00e9serve naturelle nationale g\u00e9ologique de Haute-Provence, \u00e0 Digne-les-Bains. L\u2019individu de gauche, vu de face, montre son orifice buccal entour\u00e9 de tentacules. Taille d\u2019un nautile\u00a0: 15-20 cm (\u00a9 J.M. Bardintzeff).<\/p>\n<p><!--more--><\/p>\n<p>On parle de \u00ab\u00a0fossile vivant\u00a0\u00bb, terme utilis\u00e9 par Darwin, tr\u00e8s populaire mais non scientifique aujourd\u2019hui\u00a0: on lui pr\u00e9f\u00e8re \u00ab\u00a0esp\u00e8ce panchronique\u00a0\u00bb, \u00ab\u00a0esp\u00e8ce relique\u00a0\u00bb, \u00ab\u00a0esp\u00e8ce relicte\u00a0\u00bb.<\/p>\n<p>Voir aussi mon blog du 13\/11\/2016 \u00ab\u00a0\u00c9chapp\u00e9 de la Pr\u00e9histoire\u00a0\u00bb ?\u00a0:<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2016\/11\/13\/echappe-de-prehistoire\/\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2016\/11\/13\/echappe-de-prehistoire\/<\/a><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Le nautile est un mollusque c\u00e9phalopode, comme le poulpe, le calmar, la seiche. Il existe depuis l\u2019\u00e8re Primaire, il y a plus de 400 millions d\u2019ann\u00e9es, et n\u2019a que peu \u00e9volu\u00e9 depuis. Par contre, les ammonites, autres c\u00e9phalopodes, ont disparu \u00e0 la fin de l\u2019\u00e8re Secondaire (mon blog du 24\/11\/2020). Trois nautiles \u00ab\u00a0batifolant\u00a0\u00bb dans un &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/12\/01\/le-nautile-fossile-vivant\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Le nautile \u00ab fossile vivant \u00bb ?<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[1],"tags":[2201,2219,2203,2220,2224,2225,357,2221,2216,2205,2222,2223,2218],"class_list":["post-6400","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-cephalopode","tag-darwin","tag-digne-les-bains","tag-espece-panchronique","tag-espece-relicte","tag-espece-relique","tag-fossile","tag-fossile-vivant","tag-haute-provence","tag-mollusque","tag-nautile","tag-panchronique","tag-reserve-naturelle-nationale-geologique-de-haute-provence"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le nautile \u00ab fossile vivant \u00bb ?, par Jacques-Marie Bardintzeff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/12\/01\/le-nautile-fossile-vivant\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le nautile \u00ab fossile vivant \u00bb ?, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Le nautile est un mollusque c\u00e9phalopode, comme le poulpe, le calmar, la seiche. 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