{"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\/ancestral-arthropod\/","title":{"rendered":"One step closer to the ancestral arthropod"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">A newly discovered species may bring us one step closer to the ancestral arthropod. This little lobopodian species is approximately 500 million years old and looks like a worm &#8211; except for its 20 to 30 legs. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Apart from the amount of legs, this little creature called <\/span><i><span style=\"font-weight: 400;\">Ovatiovermis cribratus<\/span><\/i><span style=\"font-weight: 400;\"> has some other interesting features. Living deep in the sea during the Cambrian, the <\/span><i><span style=\"font-weight: 400;\">Ovatiovermis cribratus <\/span><\/i><span style=\"font-weight: 400;\">used to anchored itself to the bottom of the ocean and used its legs to filter the water. This feeding behaviour reminds a little dance, as you can see in this amazing 3D video:<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"500 million year old lobopodian\" 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;\">Scientists are trying to build the arthropod evolutionary tree based on these new findings. However, two main issues still hold them back:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Lobopodians are extinct. That means we can\u2019t obtain molecular data to build their family tree in the same way we do with living species. The way around it is to look for fossils and anatomical information that could help build an evolutionary scenario.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Even though other lobopodian fossils have been found, they exhibit a high diversity and disparity between each other. Among many contemporary fossils, it is hard to determine true ancestral branches.<\/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=\"One step closer to the ancestral arthropod\" 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>So why all this fuss about one new lobopodian fossil?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">The group of arthropods &#8211; to which lobopodians are part of &#8211; is one of the best succeeded groups of animals covering 80% of all known species. Not only, the feeding habit of lobopodians reveals an important trace in the evolution of all arthropods.<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">Well <\/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;\"> \u2013 Ovation, <\/span><i><span style=\"font-weight: 400;\">vermis<\/span><\/i><span style=\"font-weight: 400;\"> \u2013 worm), you\u2019ve revealed that the ancestor of &gt;80% of animal species was a filter-feeder, stand up and give yourself a round of applause! &#8211; Dave Marshall for BioMed Central (<a href=\"http:\/\/blogs.biomedcentral.com\/bmcseriesblog\/2017\/01\/31\/newly-discovered-500-million-year-old-species-offers-insights-ancestral-arthropod\/\">read the full article here<\/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=\"One step closer to the ancestral arthropod\" width=\"800\" height=\"246\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Despite all the new information about the ancestral arthropod, a question remains: do people find lobopodians cute creepy as their living relatives?<\/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=\"One step closer to the ancestral arthropod\" 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>\n","protected":false},"excerpt":{"rendered":"<p>A newly discovered species may bring us one step closer to the ancestral arthropod. This little lobopodian species is approximately 500 million years old and looks like a worm &#8211; except for its 20 to 30 legs. Apart from the amount of legs, this little creature called Ovatiovermis cribratus has some other interesting features. Living [&hellip;]<\/p>\n","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. 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