{"id":18586,"date":"2025-06-25T08:24:43","date_gmt":"2025-06-25T11:24:43","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=18586"},"modified":"2026-01-16T12:18:33","modified_gmt":"2026-01-16T15:18:33","slug":"terra-dos-gigantes-ecos-de-um-mundo-perdido","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/terra-dos-gigantes-ecos-de-um-mundo-perdido\/","title":{"rendered":"Terra dos gigantes: ecos de um mundo perdido"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>Terra dos gigantes:<\/strong><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong> <\/strong><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">p<span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">or<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> <span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">milh\u00f5es de anos, a Terra foi lar de gigantes que dominaram c\u00e9us, mares e continentes. Com efeito<\/span><\/span><\/span><\/span><\/span><\/span>, <span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">s<span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">u<\/span><\/span><\/span><\/span><\/span><\/span>a extin\u00e7\u00e3o ecoa como advert\u00eancia para o presente. Hoje, seus f\u00f3sseis revelam ecos de um mundo perdido.<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong>Terra dos gigantes<\/strong><\/strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000;\"><strong><span style=\"font-size: 24pt;\"><span style=\"font-size: 12pt;\"><strong><strong>: ecos de um mundo perdido<\/strong><\/strong><\/span><\/span><\/strong><\/span><\/strong><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"83\" data-attachment-id=\"18164\" data-permalink=\"https:\/\/biologo.com.br\/bio\/sylvia-earle-na-luta-pelos-oceanos\/original-biologo-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?fit=74%2C83&amp;ssl=1\" data-orig-size=\"74,83\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"original-biologo (2)\" data-image-description=\"&lt;p&gt;artigo original www.biologo.com.br \u00a9 todos os direitos reservados&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?fit=74%2C83&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?resize=74%2C83&#038;ssl=1\" alt=\"Artigo original www.biologo.com.br \u00a9 todos os direitos reservados\" class=\"wp-image-18164\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><strong>25\/6\/2025<\/strong>&nbsp;::&nbsp; por<strong> Marco Pozzana<\/strong>, bi\u00f3logo<\/p>\n\n\n\n<p class=\"has-drop-cap has-black-color has-text-color has-link-color wp-elements-feea576d9a83ccb452ebb662cd7e30b1 wp-block-paragraph\">H\u00e1 milh\u00f5es de anos, o planeta que hoje habitamos abrigava seres de enormes propor\u00e7\u00f5es. A Terra era dominada por criaturas colossais \u2014 dinossauros, r\u00e9pteis marinhos e pterossauros \u2014 cuja diversidade e grandeza desafiam nossa imagina\u00e7\u00e3o. Essa era, que compreende a maior parte do Mesozoico, marcou o auge da megafauna terrestre. Mas embora esse mundo tenha desaparecido sob camadas de rochas e cat\u00e1strofes, seus ecos ainda ressoam na ci\u00eancia, na cultura e na paisagem geol\u00f3gica do presente.<\/p>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes-dinossauros.gif?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"81\" data-attachment-id=\"18588\" data-permalink=\"https:\/\/biologo.com.br\/bio\/terra-dos-gigantes-ecos-de-um-mundo-perdido\/terra-dos-gigantes-dinossauros\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes-dinossauros.gif?fit=88%2C81&amp;ssl=1\" data-orig-size=\"88,81\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Terra-dos-gigantes-dinossauros\" data-image-description=\"&lt;p&gt;erra dos gigantes: ecos de um mundo perdido  H\u00e1 milh\u00f5es de anos, o planeta que hoje habitamos abrigava seres de enormes propor\u00e7\u00f5es. A Terra era dominada por criaturas colossais \u2014 dinossauros, r\u00e9pteis marinhos e pterossauros \u2014 cuja diversidade e grandeza desafiam nossa imagina\u00e7\u00e3o. Essa era, que compreende a maior parte do Mesozoico, marcou o auge da megafauna terrestre. Mas embora esse mundo tenha desaparecido sob camadas de rochas e cat\u00e1strofes, seus ecos ainda ressoam na ci\u00eancia&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes-dinossauros.gif?fit=88%2C81&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes-dinossauros.gif?resize=88%2C81&#038;ssl=1\" alt=\"\" class=\"wp-image-18588\"\/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/evolucao-do-tamanho\/\">Evolu\u00e7\u00e3o do Tamanho<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/tiranossauro\/\">Tiranossauro<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/o-fim-dos-dinossauros\/\">O fim dos dinossauros<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-29b051a6171c1db507cd3582230c6f74 wp-block-paragraph\">Durante o per\u00edodo Jur\u00e1ssico e, posteriormente, o Cret\u00e1ceo, formas de vida gigantescas atingiram seu \u00e1pice evolutivo. Sauropodes como <em>Argentinosaurus<\/em> e <em>Patagotitan<\/em>, por exemplo, podiam ultrapassar 30 metros de comprimento e pesar mais de 70 toneladas, tornando-se os maiores animais terrestres conhecidos pela ci\u00eancia (Carballido et al., 2017). O gigantismo, nesse contexto, n\u00e3o foi mero acaso, mas uma estrat\u00e9gia evolutiva moldada por abund\u00e2ncia de recursos, metabolismo eficiente e aus\u00eancia de competi\u00e7\u00e3o de grandes mam\u00edferos.<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/biologo.com.br\/bio\/pterossauro-sem-crista-ossea\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" data-attachment-id=\"13543\" data-permalink=\"https:\/\/biologo.com.br\/bio\/pterossauro-sem-crista-ossea\/um-pterossauro-sem-crista-ossea\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/12\/Um-pterossauro-sem-crista-ossea.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Um-pterossauro-sem-crista-\u00f3ssea\" data-image-description=\"&lt;p&gt;Um pterossauro sem crista \u00f3ssea. in Duque, Pinheiro et Barreto, 2022.&lt;br \/&gt;\nDOI: 10.1080\/02724634.2022.2116984&lt;br \/&gt;\n  Researchgate.net\/publication\/364323587&lt;br \/&gt;\nDigital painting by Matheus Fernandes Gadelha.&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Anhanguera sp. in Duque, Pinheiro et Barreto, 2022.&lt;br \/&gt;\nDOI: 10.1080\/02724634.2022.2116984&lt;br \/&gt;\n  Researchgate.net\/publication\/364323587&lt;br \/&gt;\nDigital painting by Matheus Fernandes Gadelha.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/12\/Um-pterossauro-sem-crista-ossea.jpg?fit=631%2C351&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/12\/Um-pterossauro-sem-crista-ossea.jpg?resize=631%2C351&#038;ssl=1\" alt=\"Um pterossauro sem crista \u00f3ssea\" class=\"wp-image-13543\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/12\/Um-pterossauro-sem-crista-ossea.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/12\/Um-pterossauro-sem-crista-ossea.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/biologo.com.br\/bio\/pterossauro-sem-crista-ossea\/\"><span style=\"text-decoration: underline;\">Pterossauro sem crista \u00f3ssea<\/span><\/a>. by Matheus Fernandes Gadelha.<br><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Gigantismo<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-3b7f06d2ba077a595a9687ed511610a8 wp-block-paragraph\">Entretanto, o gigantismo n\u00e3o era exclusivo dos herb\u00edvoros como o brontossauro. Entre os carn\u00edvoros, destacavam-se predadores como o <em>Tyrannosaurus rex<\/em>, com sua mordida de for\u00e7a descomunal, e o <em>Spinosaurus aegyptiacus<\/em>, dotado de adapta\u00e7\u00f5es semi-aqu\u00e1ticas que ainda desafiam interpreta\u00e7\u00f5es paleobiol\u00f3gicas (Ibrahim et al., 2020). Esses gigantes dominaram n\u00e3o apenas o continente, mas tamb\u00e9m os p\u00e2ntanos, lagos e, em alguns casos, at\u00e9 as costas marinhas.<\/p>\n\n\n\n<figure class=\"wp-block-pullquote has-white-color has-text-color has-link-color has-large-font-size wp-elements-7016068072b6cc615581d56e34b4ab89 has-background\" style=\"border-radius:100px;background-image:url(&apos;https:\/\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/03\/dinossauro-Tyrannosaurus-rex-ia.jpg&apos;);background-position:51% 75%;background-size:cover;\"><blockquote><p><em>\u201cA for\u00e7a do dinossauro estava em seu tamanho e poder, uma prova da capacidade da natureza de criar gigantes.\u201d<\/em>&nbsp;<br><\/p><cite>&#8211; <strong><a href=\"https:\/\/biologo.com.br\/bio\/david-attenborough\/\">David Attenborough<\/a><\/strong><\/cite><\/blockquote><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e7d22fa7ae7efbcdc6da17e7fd3413bb wp-block-paragraph\">O surgimento e a diversifica\u00e7\u00e3o desses animais est\u00e3o profundamente ligados \u00e0 fragmenta\u00e7\u00e3o continental. \u00c0 medida que a Pangeia se rompeu, novas rotas de migra\u00e7\u00e3o e isolamento permitiram a evolu\u00e7\u00e3o de linhagens distintas em cada supercontinente. Assim, o isolamento da Gondwana deu origem a formas \u00fanicas como os titanossauros sul-americanos, enquanto a Laurasia viu florescer tiranossaur\u00eddeos e hadrossauros de grande porte (Benton, 2015).<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-a4319bda5e8ade41a51aab61179f7e00 wp-block-paragraph\">Paralelamente, os oceanos mesozoicos fervilhavam com gigantes igualmente impressionantes. Ictiossauros, plesiossauros e mosassauros ocupavam o topo da cadeia alimentar aqu\u00e1tica, substituindo progressivamente os peixes predadores primitivos. Muitos desses r\u00e9pteis marinhos, como o <em>Mosasaurus hoffmannii<\/em>, chegavam a medir mais de 15 metros, desempenhando um papel ecol\u00f3gico an\u00e1logo ao das atuais orcas (Lindgren et al., 2010).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/biologo.com.br\/bio\/serpentisuchops-pfisterae\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" data-attachment-id=\"13126\" data-permalink=\"https:\/\/biologo.com.br\/bio\/serpentisuchops-pfisterae\/serpentisuchops-pfisterae-plesiossauro\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/09\/Serpentisuchops-pfisterae-plesiossauro.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Serpentisuchops-pfisterae-plesiossauro\" data-image-description=\"&lt;p&gt;Serpentisuchops pfisterae: revelado um plesiossauro do cret\u00e1ceo, Plesiosauria \u00e9 uma ordem de r\u00e9pteis marinhos f\u00f3sseis do clado Sauropterygia. O grupo surgiu no Jur\u00e1ssico Inferior e subsistiu durante todo o Mesozoico at\u00e9 ao desaparecimento na extin\u00e7\u00e3o K-T no Cret\u00e1ceo. Apesar de serem r\u00e9pteis gigantes e carn\u00edvoros do Mesozoico, os plesiossauros n\u00e3o estavam relacionados com os dinossauros, que formavam um grupo \u00e0 parte&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Serpentisuchops pfisterae: revelado um plesiossauro do cret\u00e1ce.  arte de Nathan Rogers&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/09\/Serpentisuchops-pfisterae-plesiossauro.jpg?fit=631%2C351&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/09\/Serpentisuchops-pfisterae-plesiossauro.jpg?resize=631%2C351&#038;ssl=1\" alt=\"Serpentisuchops pfisterae: revelado um plesiossauro do cret\u00e1ceo\" class=\"wp-image-13126\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/09\/Serpentisuchops-pfisterae-plesiossauro.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/09\/Serpentisuchops-pfisterae-plesiossauro.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><figcaption class=\"wp-element-caption\">Terra dos gigantes &#8211; <a href=\"https:\/\/biologo.com.br\/bio\/serpentisuchops-pfisterae\/\"><em><strong>Serpentisuchops pfisterae<\/strong><\/em><\/a><strong><em><a href=\"https:\/\/biologo.com.br\/bio\/serpentisuchops-pfisterae\/\">:<\/a><\/em><a href=\"https:\/\/biologo.com.br\/bio\/serpentisuchops-pfisterae\/\">&nbsp;um plesiossauro do cret\u00e1ceo<\/a><\/strong>. Arte: Nathan Rogers<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\">A ci\u00eancia moderna ajudando a revelar o passado da Terra dos Gigantes<\/h4>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-82e459794c2f0620dc05419dd3055ec8 wp-block-paragraph\">A ci\u00eancia moderna, por meio da paleontologia e da biogeografia, tem reconstru\u00eddo esse mundo perdido com extraordin\u00e1ria precis\u00e3o. Ao passo que o advento da tomografia computadorizada aplicada a <a href=\"https:\/\/biologo.com.br\/bio\/fosseis\/\"><span style=\"text-decoration: underline;\">f\u00f3sseis<\/span><\/a>, aliado \u00e0 an\u00e1lise de is\u00f3topos est\u00e1veis e ao uso de ferramentas digitais, ampliou nossa capacidade de inferir dieta, crescimento, locomo\u00e7\u00e3o e at\u00e9 padr\u00f5es comportamentais desses animais extintos.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-6ab2af20ac0a1be9b2158272ffe9d355 wp-block-paragraph\">Curiosamente, a tend\u00eancia ao gigantismo n\u00e3o se limitou ao Mesozoico. Durante o Paleoceno e o Eoceno, ap\u00f3s a extin\u00e7\u00e3o dos dinossauros, outros grupos tentaram ocupar os nichos deixados por eles. Como resultado, mam\u00edferos como <em>Paraceratherium<\/em>, aves como <em>Gastornis<\/em> e serpentes como <em>Titanoboa<\/em> alcan\u00e7aram dimens\u00f5es surpreendentes, sugerindo que o gigantismo emergiu repetidamente em contextos ecol\u00f3gicos prop\u00edcios (Head et al., 2009).<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-91c49ed657c4add6d44aef7e33bb4e51 wp-block-paragraph\">Entretanto, o que teria causado a extin\u00e7\u00e3o de tantos desses colossos? A hip\u00f3tese mais aceita \u00e9 a do impacto de um asteroide h\u00e1 cerca de 66 milh\u00f5es de anos, que provocou altera\u00e7\u00f5es ambientais abruptas e um colapso em cascata dos ecossistemas (Alvarez et al., 1980). Assim, essa cat\u00e1strofe, associada a um vulcanismo intenso na regi\u00e3o do Dec\u00e3o, levou ao desaparecimento de mais de 75% das esp\u00e9cies da Terra, encerrando a chamada \u201cEra dos Dinossauros\u201d.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"18589\" data-permalink=\"https:\/\/biologo.com.br\/bio\/terra-dos-gigantes-ecos-de-um-mundo-perdido\/terra-dos-gigantes\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?fit=1200%2C675&amp;ssl=1\" data-orig-size=\"1200,675\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Terra-dos-gigantes\" data-image-description=\"&lt;p&gt;erra dos gigantes: ecos de um mundo perdido  H\u00e1 milh\u00f5es de anos, o planeta que hoje habitamos abrigava seres de enormes propor\u00e7\u00f5es. A Terra era dominada por criaturas colossais \u2014 dinossauros, r\u00e9pteis marinhos e pterossauros \u2014 cuja diversidade e grandeza desafiam nossa imagina\u00e7\u00e3o. Essa era, que compreende a maior parte do Mesozoico, marcou o auge da megafauna terrestre. Mas embora esse mundo tenha desaparecido sob camadas de rochas e cat\u00e1strofes, seus ecos ainda ressoam na ci\u00eancia&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Terra dos gigantes: ecos de um mundo perdido\" class=\"wp-image-18589\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/06\/Terra-dos-gigantes.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">Extin\u00e7\u00e3o em massa: um cen\u00e1rio que volta a rondar os seres vivos<\/h5>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e6d562b62d35f9d7ea5318df9b83c490 wp-block-paragraph\">Contudo, estamos vivendo o que muitos cientistas chamam de a sexta extin\u00e7\u00e3o em massa. Diferentemente das anteriores, esta \u00e9 causada principalmente por atividades humanas, como <a href=\"https:\/\/biologo.com.br\/bio\/desmatamento-na-amazonia\/\"><span style=\"text-decoration: underline;\">desmatamento<\/span><\/a>, polui\u00e7\u00e3o e mudan\u00e7as clim\u00e1ticas. Inegavelmente, a <a href=\"https:\/\/biologo.com.br\/bio\/perda-de-biodiversidade\/\"><span style=\"text-decoration: underline;\">perda de biodiversidade<\/span><\/a> tem ocorrido em ritmo alarmante nas \u00faltimas d\u00e9cadas. Preservar ecossistemas \u00e9 urgente para evitar colapsos irrevers\u00edveis (Ceballos et al., 2020).<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-652591387361957d41d0e508aaa3a5cb wp-block-paragraph\">Hoje, os f\u00f3sseis desses gigantes permanecem como testemunhos silenciosos de um tempo em que a vida floresceu em dimens\u00f5es \u00e9picas. Em cada v\u00e9rtebra escavada, em cada cr\u00e2nio reconstitu\u00eddo, reencontramos n\u00e3o apenas a forma de criaturas extintas, mas tamb\u00e9m a hist\u00f3ria profunda da biodiversidade planet\u00e1ria.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-d836ecabd853e0d510732caf06d812d8 wp-block-paragraph\">A saber, al\u00e9m do fasc\u00ednio que exercem, essas criaturas nos oferecem uma lente poderosa para compreender a evolu\u00e7\u00e3o, a adapta\u00e7\u00e3o e a extin\u00e7\u00e3o. Em um planeta que continua a mudar, aprender com o passado \u00e9 essencial para preservar o futuro.<\/p>\n\n\n\n<figure class=\"wp-block-pullquote has-white-color has-text-color has-link-color has-medium-font-size wp-elements-dcea5785894af7424d4646807760cc31 has-background\" style=\"border-style:none;border-width:0px;border-radius:74px;margin-right:0;margin-left:0;background-image:url(&apos;https:\/\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/07\/dinossauros.jpg&apos;);background-position:54% 67%;background-size:cover;\"><blockquote><p><em>\u201cOs dinossauros podem estar extintos da face do planeta, mas est\u00e3o <em>bem <\/em>vivos em nossa imagina\u00e7\u00e3o.\u201d<\/em>&nbsp;<\/p><cite>&#8211; <strong>Steve Miller<\/strong><\/cite><\/blockquote><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-82d7f525fa56c41adb2605c747c68166 wp-block-paragraph\">A era dos gigantes terminou, mas seus vest\u00edgios continuam a emergir, camada ap\u00f3s camada, revelando um mundo perdido que, aos poucos, reconquistamos pela ci\u00eancia. Cada f\u00f3ssil revela n\u00e3o apenas o que j\u00e1 foi, mas o que ainda podemos aprender sobre a resili\u00eancia da vida e a fragilidade do equil\u00edbrio ecol\u00f3gico.<\/p>\n\n\n\n<h6 class=\"wp-block-heading has-small-font-size\"><strong>Fontes e refer\u00eancias:<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-f2582d15963a65ce2533ac318871deb5\">Alvarez, L. W., Alvarez, W., Asaro, F., &amp; Michel, H. V. (1980). <em><a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.208.4448.1095\" target=\"_blank\" rel=\"noreferrer noopener\">Extraterrestrial cause for the Cretaceous\u2013Tertiary extinction<\/a><\/em>. Science, 208(4448), 1095\u20131108. <a href=\"https:\/\/doi.org\/10.1126\/science.208.4448.1095\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1126\/science.208.4448.1095<\/a><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-2bfdaf343b0840c5c76036df34814c09\">Benton, M. J. (2015). <em>Vertebrate Paleontology<\/em> (4th ed.). Wiley-Blackwell. [PDF]<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-eb67d88285c12eac43ff612d21fda91f\">Carballido, J. L., Pol, D., Cerda, I. A., et al. (2017). <em><a href=\"https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rspb.2017.1219\" target=\"_blank\" rel=\"noreferrer noopener\">A new giant titanosaur sheds light on body mass evolution among sauropods<\/a><\/em>. Proceedings of the Royal Society B, 284(1860), 20171219. <a href=\"https:\/\/doi.org\/10.1098\/rspb.2017.1219\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1098\/rspb.2017.1219<\/a><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-1c4905e6309efd6bd72205b2564cee86\">Ceballos, G., Ehrlich, P. R., &amp; Raven, P. H. (2020). <em>V<a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.1922686117\">ertebrates on the brink as indicators of biological annihilation and the sixth mass extinction<\/a><\/em>. Proceedings of the National Academy of Sciences, <strong>117<\/strong>(24), 13596\u201313602. <a href=\"https:\/\/doi.org\/10.1073\/pnas.1922686117\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1073\/pnas.1922686117<\/a><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-c9aa9fed8f1506caf67de4357efa127a\">Head, J. J., et al. (2009). <em><a href=\"https:\/\/www.nature.com\/articles\/nature07671\" target=\"_blank\" rel=\"noreferrer noopener\">Giant boid snake from the Palaeocene neotropics reveals hotter past equatorial temperatures<\/a><\/em>. Nature, 457(7232), 715\u2013717. https:\/\/doi.org\/10.1038\/nature07671<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-834a420f2d5c1a542f807b1d80b04ddf\">Ibrahim, N., et al. (2020). <em><a href=\"https:\/\/www.nature.com\/articles\/s41586-020-2190-3\" target=\"_blank\" rel=\"noreferrer noopener\">Tail-propelled aquatic locomotion in a theropod dinosaur<\/a><\/em>. Nature, 581, 67\u201370. <a href=\"https:\/\/doi.org\/10.1038\/s41586-020-2190-3\">https:\/\/doi.org\/10.1038\/s41586-020-2190-3<\/a><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-0a28b2a5191e93d61450afd3d9ceb253\">Lindgren, J., Polcyn, M. J., &amp; Everhart, M. J. (2010). <em>S<a href=\"https:\/\/www.nature.com\/articles\/ncomms3423\" target=\"_blank\" rel=\"noreferrer noopener\">oft tissue preservation in a fossil marine lizard with a bilobed tail fin<\/a><\/em>. Nature Communications, 1, 128. <\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"174\" height=\"147\" data-attachment-id=\"11979\" data-permalink=\"https:\/\/biologo.com.br\/bio\/caracal-um-mestre-da-sobrevivencia\/apoiepeq\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" data-orig-size=\"174,147\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"apoiepeq\" data-image-description=\"&lt;p&gt;Apoie o Bi\u00f3logo&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?resize=174%2C147&#038;ssl=1\" alt=\"Apoie o Bi\u00f3logo\" class=\"wp-image-11979\" title=\"Apoie o Bi\u00f3logo\"\/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\">Apoie o Bi\u00f3logo<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Terra dos gigantes: por milh\u00f5es de anos, a Terra foi lar de gigantes que dominaram c\u00e9us, mares e continentes. Com<\/p>\n","protected":false},"author":1,"featured_media":18589,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Por milh\u00f5es de anos, a Terra foi lar de gigantes que dominaram c\u00e9us, mares e continentes. Sua extin\u00e7\u00e3o abrupta ecoa como advert\u00eancia para o presente. Hoje, seus f\u00f3sseis revelam ecos de um mundo perdido.","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[121,21,28,27],"tags":[61,60,268],"class_list":["post-18586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evolucao","category-herpetologia","category-paleontologia","category-zoologia","tag-fosseis","tag-paleontologia","tag-repteis-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Terra dos gigantes: ecos de um mundo perdido - Paleo Gigantismo<\/title>\n<meta name=\"description\" content=\"Por milh\u00f5es de anos a Terra foi de gigantes que dominaram mares e continentes. Sua extin\u00e7\u00e3o... 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