{"id":14294,"date":"2025-07-10T17:00:00","date_gmt":"2025-07-10T15:00:00","guid":{"rendered":"https:\/\/holistic.news\/en\/?p=14294"},"modified":"2026-02-09T19:59:37","modified_gmt":"2026-02-09T18:59:37","slug":"not-a-tree-not-a-fungus-the-mysterious-colossus-from-430-million-years-ago","status":"publish","type":"post","link":"https:\/\/holistic.news\/en\/not-a-tree-not-a-fungus-the-mysterious-colossus-from-430-million-years-ago\/","title":{"rendered":"Not a Tree, Not a Fungus: The Mysterious Colossus from 430 Million Years Ago"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Shadow of Giants Past<\/h2>\n\n\n\n<p>They towered over anything else growing on Earth at that time. Their massive trunks, reaching up to eight meters, stood alone amidst an almost barren land. <strong>Prototaxites<\/strong> \u2013 a fossil from 430 million years ago \u2013 is one of the greatest enigmas paleontology has ever faced. <strong>For over 160 years, scientists have tried to uncover what this organism truly was. <\/strong>Now, a new hypothesis suggests it was an <strong>extinct life form<\/strong> with no modern counterparts.<\/p>\n\n\n\n<p>It all began in 1843 when geologist John William Dawson found a strange trunk on the coast of Gasp\u00e9 Bay in Canada. The scholar identified it as the remains of an ancient conifer and named it <em>Prototaxites<\/em> \u2013 &#8220;first conifer.&#8221; However, what at first glance looked like a tree didn&#8217;t fit known life forms. <strong>Moreover, trees didn&#8217;t even exist during the period when <em>Prototaxites<\/em> was supposed to have thrived.<\/strong><\/p>\n\n\n\n<p>For decades, scientists tried to classify this peculiar creation. Was it a giant alga? Or perhaps a gigantic lichen? <strong>The most widespread theory became the hypothesis that it was a fungus \u2013 albeit one of unprecedented size and structure.<\/strong><\/p>\n\n\n\n<p>In 2007, isotopic analyses indicated that this <strong>extinct life form<\/strong> did not perform photosynthesis. Instead, it nourished itself like a fungus, absorbing organic matter from its surroundings. The results of these studies suggested that giant fungi once ruled the Earth.<\/p>\n\n\n\n<p>&#8220;It&#8217;s a vision from another world. Forests of giant fungi, among which barely visible mosses and ferns grew,&#8221; said paleontologist Francis Hueber, who reignited the debate on the subject at the beginning of the 21st century.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A New Look at an Ancient Giant<\/h2>\n\n\n\n<p>Everything changed when Dr. Corentin Loron from the University of Edinburgh joined the research. Together with his team, he decided to take a closer look at a new species \u2013 <em>Prototaxites taiti<\/em>. <strong>This is an extinct organism whose fossils were discovered in the famous Scottish Rhynie chert deposi<\/strong>t. It is considered a smaller relative of the enigmatic <em>Prototaxites<\/em>.<\/p>\n\n\n\n<p>Loron&#8217;s team examined three different fragments of <em>P. taiti<\/em> and stumbled upon something surprising. The interior of the fossils was filled with a network of tubes of unknown function. Some had bizarre rings, others formed irregular shapes, unprecedented in any known contemporary organisms. <strong>Even more surprising was the chemistry of <em>Prototaxites<\/em>.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" src=\"https:\/\/holistic.news\/en\/wp-content\/uploads\/2025\/07\/Extinct-Life-Form-2.jpg\" alt=\"Extinct Life Form, Fossils\" class=\"wp-image-14297\" srcset=\"https:\/\/holistic.news\/en\/wp-content\/uploads\/2025\/07\/Extinct-Life-Form-2.jpg 900w, https:\/\/holistic.news\/en\/wp-content\/uploads\/2025\/07\/Extinct-Life-Form-2-300x169.jpg 300w, https:\/\/holistic.news\/en\/wp-content\/uploads\/2025\/07\/Extinct-Life-Form-2-768x432.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\"><em>Fot. Suki Lee\/Pexels<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>No traces of chitin<\/strong> \u2013 a compound characteristic of fungi \u2013 were found in the cell walls. Instead, researchers detected aromatic and phenolic compounds, similar to lignin found in plants. However, the organism&#8217;s structure still did not fit any known plant group.<\/p>\n\n\n\n<p>&#8220;We couldn&#8217;t assign <em>Prototaxites<\/em> to any known life group. Both the structure and the chemical composition were unique. This is a completely new type of organism,&#8221; emphasizes Loron.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">An Extinct Life Form That Left No Descendants<\/h2>\n\n\n\n<p><strong><em>Prototaxites<\/em> was therefore not a plant. Nor was it a fungus, an alga, or an animal.<\/strong> Loron&#8217;s team put forth the theory that we are dealing with an organism belonging to a completely <strong>extinct branch of eukaryotes<\/strong> \u2013 complex beings whose cells contain a nucleus, but which have not survived in any known form. Everything indicates that it was an <strong>extinct life form<\/strong>, unrelated to any modern organism.<\/p>\n\n\n\n<p>&#8220;It might be one of those evolutionary experiments that didn&#8217;t have a continuation,&#8221; explains Loron in an interview with <em><a href=\"https:\/\/www.sciencealert.com\/mysterious-giants-may-be-a-whole-new-kind-of-life-that-no-longer-exists\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Science Alert<\/a>.<\/em><\/p>\n\n\n\n<p>Additionally, the team examined alleged spores, which were supposed to confirm the organism&#8217;s fungal nature. It turned out that they were not connected in any way to its &#8220;body.&#8221; The scientists concluded that the earlier attribution of these structures to <em>Prototaxites<\/em> was erroneous.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A Lost Branch of the Tree of Life<\/h2>\n\n\n\n<p>The story of <em>Prototaxites<\/em> reminds us that evolution does not always follow a straight path. Sometimes nature tests something new \u2013 something that functions for a while and then disappears without a trace. <strong><em><a href=\"https:\/\/holistic.news\/en\/extinct-branch-of-life-found-not-a-fungus\/\">Prototaxites<\/a><\/em> might have been just such a case.<\/strong> A life form that adapted to the harsh conditions of ancient Earth but vanished as ecosystems changed.<\/p>\n\n\n\n<p><strong>Did it photosynthesize? Or did it feed as a parasite?<\/strong> We don&#8217;t know. We only know that its existence changes our understanding of what the beginnings of life on land looked like.<\/p>\n\n\n\n<p>In their publication on the <em><a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2025.03.14.643340v1\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">bioRxiv<\/a><\/em> preprint server, the scientists state directly: &#8220;No modern organism has been found that combines all the characteristics of <em>Prototaxites<\/em>.&#8221;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mysterious Traces from an Era of Forgotten Worlds<\/h2>\n\n\n\n<p>There&#8217;s something fascinating about this story. Perhaps it&#8217;s the vision of a world hundreds of millions of years ago \u2013 empty, harsh, inhabited by giants that seem unreal today. <strong>Or perhaps the very mystery of an organism whose origin we cannot explain despite advanced biological and technological knowledge.<\/strong><\/p>\n\n\n\n<p>It&#8217;s also possible that <em>Prototaxites<\/em> reminds us how fragile and unpredictable the paths of life are. That everything we know today could have turned out completely differently.<\/p>\n\n\n\n<p>Regardless of whether it was a bizarre plant-fungus, a representative of an extinct eukaryotic lineage, or something even more incomprehensible \u2013 <em>Prototaxites<\/em> remains a silent witness to an era about which we know very little. And perhaps that is why, despite the passage of millions of years, it still doesn&#8217;t leave us in peace.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><em>Read this article in Polish:<\/em> <a href=\"https:\/\/holistic.news\/nie-drzewo-nie-grzyb-tajemniczy-kolos-sprzed-430-milionow-lat\/\">Nie\u00a0drzewo, nie\u00a0grzyb. Tajemniczy kolos sprzed 430 milion\u00f3w lat<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Long before dinosaurs roamed the Earth, living giants strode across the land. They were neither plants nor fungi, and their origin remains a mystery to this day. New research suggests that Prototaxites may represent an entirely new form of life \u2013 one that vanished from the planet&#8217;s surface long ago.<\/p>\n","protected":false},"author":152,"featured_media":14296,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[435],"tags":[1404,1407,1408,1355,1409],"class_list":["post-14294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","tag-archeology","tag-fossils","tag-fungus","tag-paleontology","tag-trees"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Extinct Life Form Astonishes: Neither Plant Nor Fungus<\/title>\n<meta name=\"description\" content=\"An extinct life form from 430 million years ago was neither a plant nor a fungus. 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