{"id":6630,"date":"2017-02-02T19:00:56","date_gmt":"2017-02-02T21:00:56","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=6630"},"modified":"2022-10-14T11:22:01","modified_gmt":"2022-10-14T14:22:01","slug":"ancestral-arthropod","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/it\/ancestrale-artropode\/","title":{"rendered":"Un passo pi\u00f9 vicino all'artropode ancestrale"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Una specie appena scoperta potrebbe farci fare un passo avanti verso l'artropode ancestrale. Questa piccola specie di lobopode ha circa 500 milioni di anni e assomiglia a un verme, tranne che per le sue 20-30 zampe. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A parte la quantit\u00e0 di gambe, questa piccola creatura chiamata <\/span><i><span style=\"font-weight: 400;\">Ovatiovermis cribratus<\/span><\/i><span style=\"font-weight: 400;\"> ha altre caratteristiche interessanti. Vivendo nelle profondit\u00e0 marine durante il Cambriano, il <\/span><i><span style=\"font-weight: 400;\">Ovatiovermis cribratus <\/span><\/i><span style=\"font-weight: 400;\">si ancoravano al fondo dell'oceano e usavano le zampe per filtrare l'acqua. Questo comportamento alimentare ricorda una piccola danza, come si pu\u00f2 vedere in questo sorprendente video in 3D:<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Lobopodiano di 500 milioni di anni fa\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/emUXb8lejNo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"font-weight: 400;\">Gli scienziati stanno cercando di costruire l'albero evolutivo degli artropodi sulla base di queste nuove scoperte. Tuttavia, due problemi principali li trattengono ancora:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">I lobopodi sono estinti. Ci\u00f2 significa che non possiamo ottenere dati molecolari per costruire il loro albero genealogico come facciamo con le specie viventi. Il modo per ovviare a questo problema \u00e8 cercare fossili e informazioni anatomiche che possano aiutare a costruire uno scenario evolutivo.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Anche se sono stati trovati altri fossili di lobopodi, essi presentano un'elevata diversit\u00e0 e disparit\u00e0 tra loro. Tra i molti fossili contemporanei, \u00e8 difficile determinare i veri rami ancestrali.<\/span><\/li>\n<\/ul>\n<p><a href=\"http:\/\/blogs.biomedcentral.com\/bmcseriesblog\/2017\/01\/31\/newly-discovered-500-million-year-old-species-offers-insights-ancestral-arthropod\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6631\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2017\/02\/lobopodian-768x952.jpg\" alt=\"Un passo pi\u00f9 vicino all&#039;artropode ancestrale\" width=\"457\" height=\"566\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/02\/lobopodian-768x952.jpg 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/02\/lobopodian-768x952-242x300.jpg 242w\" sizes=\"(max-width: 457px) 100vw, 457px\" \/><\/a><\/p>\n<h4><strong>Perch\u00e9 allora tutto questo clamore per un nuovo fossile di lobopodiano?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Il gruppo degli artropodi - di cui fanno parte i lobopodi - \u00e8 uno dei gruppi di animali meglio riusciti, che comprende l'80% di tutte le specie conosciute. Non solo, le abitudini alimentari dei lobopodi rivelano una traccia importante nell'evoluzione di tutti gli artropodi.<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">Bene <\/span><i><span style=\"font-weight: 400;\">Ovatiovermis <\/span><\/i><span style=\"font-weight: 400;\">(<\/span><i><span style=\"font-weight: 400;\">Ovatio<\/span><\/i><span style=\"font-weight: 400;\"> - Ovazione, <\/span><i><span style=\"font-weight: 400;\">verme<\/span><\/i><span style=\"font-weight: 400;\"> - verme), avete rivelato che l'antenato di &gt;80% delle specie animali era un filtrante, alzatevi e fatevi un applauso! - Dave Marshall per BioMed Central (<a href=\"http:\/\/blogs.biomedcentral.com\/bmcseriesblog\/2017\/01\/31\/newly-discovered-500-million-year-old-species-offers-insights-ancestral-arthropod\/\">Leggi l'articolo completo qui<\/a>)<\/span><\/p><\/blockquote>\n<p><a href=\"http:\/\/blogs.biomedcentral.com\/bmcseriesblog\/2017\/01\/31\/newly-discovered-500-million-year-old-species-offers-insights-ancestral-arthropod\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6632 size-full\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2017\/02\/ovatiovermis.jpg\" alt=\"Un passo pi\u00f9 vicino all&#039;artropode ancestrale\" width=\"800\" height=\"246\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Nonostante tutte le nuove informazioni sull'artropode ancestrale, rimane una domanda: i lobopodi sono inquietanti come i loro parenti viventi?<\/span><a href=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2016\/06\/i-love-science.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-5826\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2016\/06\/i-love-science.png\" alt=\"Un passo pi\u00f9 vicino all&#039;artropode ancestrale\" width=\"380\" height=\"152\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science.png 1500w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science-300x120.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science-1024x410.png 1024w\" sizes=\"(max-width: 380px) 100vw, 380px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Una specie appena scoperta potrebbe farci fare un passo avanti verso l'artropode ancestrale. Questa piccola specie di lobopode ha circa 500 milioni di anni e sembra un verme, tranne che per le sue 20-30 zampe. Oltre alla quantit\u00e0 di zampe, questa piccola creatura chiamata Ovatiovermis cribratus presenta altre caratteristiche interessanti. Vivendo [...]<\/p>","protected":false},"author":11,"featured_media":6638,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>One step closer to the ancestral arthropod - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"A newly discovered species may bring us one step closer to the ancestral arthropod. This lobopodian species looks like a worm - except for its 30 legs!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/it\/ancestrale-artropode\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"One step closer to the ancestral arthropod - Mind the Graph Blog\" \/>\n<meta property=\"og:description\" content=\"A newly discovered species may bring us one step closer to the ancestral arthropod. 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