{"id":4924,"date":"2024-01-18T17:39:06","date_gmt":"2024-01-18T10:39:06","guid":{"rendered":"https:\/\/wam.vn\/en\/?p=4924"},"modified":"2024-01-18T17:39:06","modified_gmt":"2024-01-18T10:39:06","slug":"triassic-earths-climate-shift-from-deserts-to-dinosaurs-reign","status":"publish","type":"post","link":"https:\/\/wam.vn\/en\/triassic-earths-climate-shift-from-deserts-to-dinosaurs-reign\/","title":{"rendered":"Triassic Earth&#8217;s Climate Shift: From Deserts to Dinosaurs&#8217; Reign"},"content":{"rendered":"<p><em><strong>TLDR<\/strong>: Triassic rain shift due to volcanic eruptions leads to dinosaurs&#8217; dominance after altering Earth&#8217;s climate and fauna.<\/em><\/p>\n<p>This article is a summary of a You Tube video &#8220;That Time It Rained for Two Million Years&#8221; by PBS Eons<br \/>\n<iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/_1LdMWlNYS4?si=AX4MhbNSwZwEzXBB\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3>Key Takeaways:<\/h3>\n<ol>\n<li><strong>Triassic Period Setting<\/strong>: Earth 250 million years ago was hot, flat, and dry due to a supercontinent called Pangea, with dominant early reptiles and mammal ancestors.<\/li>\n<li><strong>Carnian Pluvial Episode (CPE)<\/strong>: Around 234 million years ago, the climate shifted, leading to intense, continuous rain for about two million years.<\/li>\n<li><strong>Impact on Fauna<\/strong>: The prolonged rain resulted in the decline of many early reptiles, paving the way for the rise of dinosaurs.<\/li>\n<li><strong>Geological Evidence<\/strong>: Rocks from the early Triassic are mostly red sandstones and dry soil deposits, with no coal swamps, indicating a hot, dry climate.<\/li>\n<li><strong>Pangea&#8217;s Influence<\/strong>: The shape of Pangea hindered rain cloud movement and lacked mountain ranges, contributing to the arid climate.<\/li>\n<li><strong>Pre-CPE Fauna<\/strong>: Dominant creatures included crurotarsans (croc-like reptiles), rhynchosaurs (herbivores with parrot-like beaks), and dicynodonts (mammal-like reptiles).<\/li>\n<li><strong>Discovery of CPE<\/strong>: In the 1990s, geologists discovered rocks indicating massive rainfall globally during the Carnian age within the Triassic.<\/li>\n<li><strong>Dinosaurs&#8217; Rise<\/strong>: Before the CPE, dinosaurs made up about 5% of terrestrial vertebrate fossils; after, they accounted for over 90%.<\/li>\n<li><strong>Role of Vegetation<\/strong>: The rain led to a proliferation of large conifers and coal-forming plants, altering the food supply and favoring dinosaurs over other species.<\/li>\n<li><strong>Cause and End of CPE<\/strong>: The CPE was likely triggered by the Wrangellian eruptions in Alaska and British Columbia, and ended as the planet stabilized CO2 levels, returning to a hot, dry climate.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Triassic rain shift due to volcanic eruptions leads to dinosaurs&#8217; dominance after altering Earth&#8217;s climate and fauna.<\/p>\n","protected":false},"author":3,"featured_media":4925,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-4924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-44","description-off"],"_links":{"self":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/4924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/comments?post=4924"}],"version-history":[{"count":2,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/4924\/revisions"}],"predecessor-version":[{"id":4927,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/posts\/4924\/revisions\/4927"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/media\/4925"}],"wp:attachment":[{"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/media?parent=4924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/categories?post=4924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wam.vn\/en\/wp-json\/wp\/v2\/tags?post=4924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}