{"id":267960,"date":"2023-12-01T09:00:00","date_gmt":"2023-12-01T08:00:00","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=267960"},"modified":"2023-11-24T16:35:53","modified_gmt":"2023-11-24T15:35:53","slug":"formation-fossiles","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/formation-fossiles\/","title":{"rendered":"Formation des fossiles : t\u00e9moins de l\u2019Histoire de la vie \ud83e\udea8"},"content":{"rendered":"\n<p>Tu te demandes comment se forme un fossile ? Eh bien, tu es au bon endroit ! \ud83d\ude09<\/p>\n\n\n\n<p>Mais qu\u2019est-ce qu\u2019un fossile ? C\u2019est tout simplement <strong>le reste ou l\u2019empreinte d\u2019un organisme qui a v\u00e9cu il y a tr\u00e8s longtemps<\/strong>. Ces t\u00e9moins du pass\u00e9 sont importants pour comprendre l\u2019histoire de la vie sur Terre. \ud83c\udf10<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Les fossiles vivants, \u00e7a n\u2019existe pas ! \ud83d\udea8<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Des esp\u00e8ces comme les limules, le nautile ou le c\u0153lacanthe sont d\u00e9crits \u00e0 tort comme des \u00ab fossiles vivants \u00bb, parce qu\u2019ils ressemblent \u00e0 des esp\u00e8ces qui vivaient il y a tr\u00e8s longtemps.<\/p>\n<p>&nbsp;<\/p>\n<p>Ces esp\u00e8ces ont \u00e9volu\u00e9 dans le temps, m\u00eame si leurs allures se ressemblent. De plus, un fossile est obligatoirement form\u00e9 \u00e0 partir d\u2019un organisme mort.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Alors, pr\u00eat \u00e0 d\u00e9couvrir comment <strong>ces vestiges du pass\u00e9 nous aident \u00e0 reconstituer le puzzle de l\u2019\u00e9volution de la vie sur Terre\u202f?<\/strong> C\u2019est parti !&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/7Sh3Pt6R9ELubdoH3K\/giphy.gif\" alt=\"Un homme dit \u00ab Faisons-le \u00bb\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"conditions-de-formation-des-fossiles\">Conditions de formation des fossiles<\/h2>\n\n\n\n<p>Pour commencer, nous allons te faire d\u00e9couvrir comment se forme un fossile.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"processus-de-fossilisation\">Processus de fossilisation<\/h3>\n\n\n\n<p>Il existe plusieurs processus de fossilisation. Certains fossiles se forment<strong> \u00e0 partir d\u2019empreintes laiss\u00e9es par des organismes sur des roches<\/strong>, tandis que d\u2019autres proviennent de <strong>la min\u00e9ralisation des restes organiques<\/strong>, c\u2019est-\u00e0-dire que <strong>les tissus se transforment en min\u00e9raux<\/strong>.&nbsp;&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/2t9uOPpRiW5D1hTzaC\/giphy-downsized-large.gif\" alt=\"Une personne coupe une pierre en deux avec un marteau et un fossile appara\u00eet dedans. \" \/><figcaption class=\"wp-element-caption\"><em>Et le fossile appara\u00eet !<\/em><\/figcaption><\/figure>\n<\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            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                      <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Margot2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Margot<\/p>                          <p class=\"push__teachers-school\">Arts et 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class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                              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xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                    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xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&rsquo;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"environnements-propices-a-la-preservation-des-fossiles\">Environnements propices \u00e0 la pr\u00e9servation des fossiles<\/h3>\n\n\n\n<p>Ensuite, pour qu\u2019un fossile puisse \u00eatre pr\u00e9serv\u00e9, il faut <strong>des environnements sp\u00e9cifiques<\/strong>. La s\u00e9dimentation, par exemple, joue un r\u00f4le crucial. Lorsqu\u2019un organisme est rapidement <strong>recouvert de s\u00e9diments<\/strong>, cela favorise <strong>sa pr\u00e9servation<\/strong>. \ud83e\udea8<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Les s\u00e9diments<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Ce sont des d\u00e9p\u00f4ts, terrestres ou marins, qui proviennent de l\u2019alt\u00e9ration ou de la d\u00e9sagr\u00e9gation des roches pr\u00e9existantes et qui sont transport\u00e9s par les fleuves, les glaciers ou les vents.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>De plus, l\u2019absence d\u2019oxyg\u00e8ne dans certains environnements, comme les fonds marins, peut \u00e9galement contribuer \u00e0 la conservation de la mati\u00e8re organique.<\/p>\n\n\n\n<p><strong>Ces processus et conditions sont essentiels pour comprendre comment les fossiles se forment.<\/strong> Continuons notre parcours \u00e0 travers les fossiles.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/pGjgTuaVxPWh3rTE7A\/giphy.gif\" alt=\"Un cavalier appara\u00eet dans un nuage de fum\u00e9e rose. \" \/><\/figure>\n<\/div>\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/cours\/svt\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\"\n                                    alt=\"Personne qui donne des cours particuliers\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Tu gal\u00e8res en SVT ? Trouve ton prof chez les Sherpas !<\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                Le premier cours est gratuit !\n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"types-de-fossiles\">Types de fossiles<\/h2>\n\n\n\n<p>Voyons maintenant ensemble les diff\u00e9rents types de fossiles.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fossiles-corporels\">Fossiles corporels&nbsp;<\/h3>\n\n\n\n<p>Tout d\u2019abord, il y a <strong>les fossiles corporels<\/strong>, qui comprennent<strong> des restes physiques d\u2019organismes <\/strong>comme <strong>des ossements, des coquilles et m\u00eame des empreintes laiss\u00e9es par des cr\u00e9atures<\/strong> sur des roches. Ces fossiles nous offrent un aper\u00e7u direct des formes de vie qui ont exist\u00e9 par le pass\u00e9. \ud83d\udc3e<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fossiles-stratigraphiques\">Fossiles stratigraphiques<\/h3>\n\n\n\n<p>Il y a <strong>les fossiles stratigraphiques<\/strong>, qui sont utilis\u00e9s <strong>pour dater les roches<\/strong> et <strong>reconstituer l\u2019histoire de la vie de notre plan\u00e8te<\/strong>. \ud83d\uddfa\ufe0f<\/p>\n\n\n\n<p>Parmi eux, on trouve les <a href=\"https:\/\/fr.geologyscience.com\/branches-de-la-g%C3%A9ologie\/pal%C3%A9ontologie\/index-fossiles\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u00ab index des fossiles \u00bb<\/strong><\/a>, qui sont <strong>des esp\u00e8ces connues pour avoir v\u00e9cu dans des p\u00e9riodes sp\u00e9cifiques<\/strong> de l\u2019histoire de la Terre et<strong> les fossiles de transition<\/strong>, qui t\u00e9moignent de <strong>l\u2019\u00e9volution des esp\u00e8ces au fil du temps<\/strong>.&nbsp; \u23f3<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>Si tu veux en savoir plus sur <a href=\"https:\/\/sherpas.com\/blog\/prehistoire\/\">la pr\u00e9histoire<\/a>, lis vite notre article sur le sujet !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<p>Ces diff\u00e9rents types de fossiles sont comme <strong>des pages d\u2019un livre ouvert de l\u2019histoire de la vie<\/strong>. Ils nous permettent de comprendre<strong> comment les organismes se sont d\u00e9velopp\u00e9s <\/strong>et <strong>adapt\u00e9s \u00e0 leurs environnements au fil des millions d\u2019ann\u00e9es<\/strong>.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/gk98xOaJEgStxaAMZW\/giphy.gif\" alt=\"Un poisson se transforme jusqu'\u00e0 ce qu'il atteigne la forme d'un homme. \" \/><figcaption class=\"wp-element-caption\"><em>L\u2019\u00e9volution au fil du temps !&nbsp;<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Et on ne fait que commencer \u00e0 gratter la surface de ce sujet.&nbsp;<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #2 = CPG2\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            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                     <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Thibault2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Thibault<\/p>                          <p class=\"push__teachers-school\">ENS Paris Ulm<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                   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                                  <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Sophie2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Sophie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Bordeaux<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            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<div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Noemie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">No\u00e9mie<\/p>                          <p class=\"push__teachers-school\">M2 en droit \u00e0 Assas<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                            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ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n      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class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n      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                   xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                       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xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&rsquo;un prof particulier ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 9b5ed38b-ea2e-4d3c-a3bb-f0091c2eedd2 --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont l\u00e0 pour t&rsquo;aider \u00e0 progresser !<\/p>\n<p>&nbsp;<\/p>\n<p><!-- notionvc: 20490bdd-6579-484b-9d99-0ff0bc1aa8e7 --><\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"methode-de-datation-des-fossiles\">M\u00e9thode de datation des fossiles<\/h2>\n\n\n\n<p>Lorsque les chercheurs trouvent un fossile, ils doivent le dater <strong>pour savoir de quelle p\u00e9riode il vient.<\/strong>&nbsp;&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"datation-relative\">Datation relative<\/h3>\n\n\n\n<p>Pour commencer, il y a la datation relative, qui repose sur<strong> les principes de superposition des couches g\u00e9ologiques<\/strong>. En observant l\u2019ordre dans lequel les diff\u00e9rentes couches de roches se superposent, les scientifiques peuvent d\u00e9terminer<strong> l\u2019\u00e2ge relatif des fossiles<\/strong>. \ud83d\udc80<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"747\" height=\"600\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg\" alt=\"Cette image montre diff\u00e9rente couches g\u00e9ologiques du sol.  \" class=\"wp-image-267967\" srcset=\"https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=747 747w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=300 300w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=156 156w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=339 339w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=288 288w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=462 462w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=265 265w, https:\/\/xapbm7c37i.cloudimg.io\/https:\/\/sherpas.com\/content\/uploads\/2023\/11\/formation-des-fossiles-2.jpg?q=85&amp;force_format=webp&amp;org_if_sml=1&amp;w=60 60w\" sizes=\"(max-width: 747px) 100vw, 747px\" \/><figcaption class=\"wp-element-caption\">Les diff\u00e9rentes couches d&rsquo;un sol \u00a9 <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Geologie_vouvray.jpg\" target=\"_blank\" rel=\"noreferrer noopener\">Tatmouss<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"datation-absolue\">Datation absolue<\/h3>\n\n\n\n<p>La datation absolue permet de donner l<strong>\u2019\u00e2ge exact d\u2019un fossile<\/strong>. Parmi les m\u00e9thodes de datation absolue,<strong> la datation radiom\u00e9trique<\/strong> est l\u2019une des plus utilis\u00e9es. Elles reposent sur <strong>la mesure des <\/strong><a href=\"https:\/\/sherpas.com\/blog\/isotope\/\"><strong>isotopes radioactifs<\/strong><\/a><strong> dans les roches ou les fossiles<\/strong> pour calculer leur \u00e2ge.&nbsp;<\/p>\n\n\n\n<p>Une autre m\u00e9thode,<strong> la datation par thermoluminescence<\/strong>, se base sur<strong> l\u2019accumulation de rayonnement ionisant dans les min\u00e9raux<\/strong> au fil du temps. \u23f2\ufe0f<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Les rayonnements ionisants <span style=\"font-weight: 400\">\u2600\ufe0f<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>C\u2019est une forme d\u2019\u00e9nergie lib\u00e9r\u00e9e par les atomes et qui se propage sous forme d\u2019ondes \u00e9lectromagn\u00e9tiques (rayons X) ou de particules (neutrons).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Ces m\u00e9thodes de datation sont comme<strong> des horloges qui nous aident \u00e0 remonter le temps <\/strong>et \u00e0 comprendre l\u2019\u00e2ge des fossiles.&nbsp;<\/p>\n\n\n\n<p>Tu es toujours l\u00e0 ? On continue !<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part\u2019 global #3 = CPG3\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emilie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emilie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Hugo2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Hugo<\/p>                          <p class=\"push__teachers-school\">Insa Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Alma2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Alma<\/p>                          <p class=\"push__teachers-school\">ENS Paris-Saclay<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin de cours particuliers ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 27874cb7-7cca-4c68-a2e3-ea8000cbb55b --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p><span style=\"color: #48b378;\">4 points<\/span> de plus sur ta <span style=\"color: #48b378;\">moyenne<\/span> avec nos profs Sherpas ! <span role=\"image\" aria-label=\"\ud83d\udcc8\">\ud83d\udcc8<\/span><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"utilite-des-fossiles\">Utilit\u00e9 des fossiles<\/h2>\n\n\n\n<p>Nous allons, \u00e0 pr\u00e9sent, parler de l\u2019importance des fossiles dans <strong>la compr\u00e9hension des \u00e9cosyst\u00e8mes anciens, de l\u2019\u00e9volution des esp\u00e8ces et des changements environnementaux.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"reconstruction\">Reconstruction<\/h3>\n\n\n\n<p>D\u2019abord, les fossiles nous permettent de <strong>reconstituer les \u00e9cosyst\u00e8mes anciens<\/strong> en nous offrant <strong>un aper\u00e7u des interactions entre les diff\u00e9rentes esp\u00e8ces et de l\u2019environnement dans lequel elles vivaient<\/strong>. \ud83c\udfde\ufe0f<\/p>\n\n\n\n<p>Cela nous permet de comprendre <strong>comment les \u00e9cosyst\u00e8mes ont \u00e9volu\u00e9 au fil du temps<\/strong> et <strong>comment les organismes ont d\u00fb s\u2019adapter aux changements climatiques<\/strong>.&nbsp; \u2614<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/hPovBcQ3c1g9W\/giphy.gif\" alt=\"Les temp\u00e9ratures augmentent d'ann\u00e9e en ann\u00e9e. \" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"etude-de-levolution-des-especes\">\u00c9tude de l\u2019\u00e9volution des esp\u00e8ces<\/h3>\n\n\n\n<p>Les fossiles sont des t\u00e9moins pr\u00e9cieux de l\u2019\u00e9volution des esp\u00e8ces. En \u00e9tudiant<strong> les changements morphologiques et comportementaux<\/strong> \u00e0 travers les \u00e8res g\u00e9ologiques, les scientifiques peuvent retracer<strong> les \u00e9tapes de l\u2019\u00e9volution<\/strong> et comprendre comment la vie s\u2019est diversifi\u00e9e au fil du temps. \ud83e\uddec<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"indicateurs-des-changements-environnementaux\">Indicateurs des changements environnementaux<\/h3>\n\n\n\n<p>Enfin, les fossiles sont<strong> des indicateurs cl\u00e9s des changements environnementaux.<\/strong> Leur \u00e9tude permet de comprendre <strong>l\u2019impact des changements climatiques, des \u00e9v\u00e9nements g\u00e9ologiques et des activit\u00e9s humaines sur les \u00e9cosyst\u00e8mes pass\u00e9s, pr\u00e9sents et futurs<\/strong>.&nbsp;<\/p>\n\n\n\n<p>Te voil\u00e0 arriv\u00e9 \u00e0 la fin de ton voyage \u00e0 travers le monde des fossiles ! \ud83c\udfc1<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/8JQ9XHkjYNr8CgjuDv\/giphy.gif\" alt=\"Un homme agite un drapeau \u00e0 damier. \" \/><figcaption class=\"wp-element-caption\"><em>Tu es arriv\u00e9 !<\/em><\/figcaption><\/figure>\n<\/div>\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>R\u00e9cap\u2019 \ud83e\udde0<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><!-- wp:paragraph --><\/p>\n<p>Nous allons r\u00e9capituler les points cl\u00e9s sur les fossiles.<\/p>\n<p><!-- \/wp:paragraph --> <!-- wp:paragraph --><\/p>\n<p><strong>\u2705 Les fossiles sont les restes ou les empreintes d\u2019organismes anciens.<\/strong><\/p>\n<p><strong>\u2705 Le processus de fossilisation et les conditions environnementales sont cruciaux pour la formation et la pr\u00e9servation des fossiles.\u00a0<\/strong><\/p>\n<p><strong>\u2705 Il existe diff\u00e9rents types de fossiles, des restes corporels aux fossiles stratigraphiques, chacun offrant des informations uniques sur le pass\u00e9.\u00a0<\/strong><\/p>\n<p><strong>\u2705 Les m\u00e9thodes de datation des fossiles permettent de d\u00e9terminer leur \u00e2ge et de reconstituer l\u2019histoire de la vie sur Terre.\u00a0<\/strong><\/p>\n<p><strong>\u2705 Les fossiles sont pr\u00e9cieux pour la reconstruction des \u00e9cosyst\u00e8mes anciens, l\u2019\u00e9tude de l\u2019\u00e9volution des esp\u00e8ces et la compr\u00e9hension des changements environnementaux.\u00a0<\/strong><\/p>\n<p><!-- \/wp:paragraph --><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>C\u2019est la fin de cet article sur la formation des fossiles, on esp\u00e8re qu\u2019il t\u2019aura plu et t\u2019aura aid\u00e9. On te revoit bient\u00f4t ! \ud83d\udc4b<\/p>\n\n\n\n<p><em>Image mise en avant &#8211; Auteur \u00a9<\/em> <a href=\"https:\/\/www.flickr.com\/photos\/jsjgeology\/52286676300\" target=\"_blank\" rel=\"noreferrer noopener\"><em>James St. John<\/em><\/a><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;267960&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Formation des fossiles : t\u00e9moins de l\u2019Histoire de la vie \ud83e\udea8&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Tu as aim\u00e9 cet article ?<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tu te demandes comment se forme un fossile ? Eh bien, tu es au bon endroit ! \ud83d\ude09 (&#8230;)<\/p>\n","protected":false},"author":359,"featured_media":267965,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"category":[803,811],"tag":[350,770],"class_list":["post-267960","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-svt-biologie-2","tag-cinquieme","tag-fiche-revision"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/267960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/359"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=267960"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/267960\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/267965"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=267960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=267960"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=267960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}