The Jurassic rise of squamates as supported by lepidosaur disparity and evolutionary rates.
The Jurassic rise of squamates as supported by lepidosaur disparity and evolutionary rates.
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DOI：
10.7554/elife.66511
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发表时间：
2022-05-03
期刊：
影响因子：
7.7
通讯作者：
Zhu, Min
中科院分区：
文献类型：
--
作者：
Bolet, Arnau;Stubbs, Thomas L.;Herrera-Flores, Jorge A.;Benton, Michael J.;Zhu, Min
今天的有鳞动物（蜥蜴、蛇和亲戚）包括10,000多个物种，而它们的姐妹群喙头动物（Rhynchocephalia）今天只有一个物种，即鳄蜥（tuatara）。有鳞动物多样性的爆发可以追溯到1亿年前的白垩纪陆地革命，当时开花植物开始接管陆地生态系统，与共同进化的昆虫和食虫捕食者（如蜥蜴，鸟类和哺乳动物）的多样化有关。有鳞动物的出现要早得多，但它们在白垩纪前约有1.5亿年（Myr）的漫长历史，只有稀疏的化石记录。在这里，我们提供的证据中，晚侏罗世（174-145马）的鳞片形态的初始辐射，并表明，他们建立了自己的关键生态作用早得多，比已经假设，他们并没有改变他们。
The squamates (lizards, snakes, and relatives) today comprise more than 10,000 species, and yet their sister group, the Rhynchocephalia, is represented by a single species today, the tuatara. The explosion in squamate diversity has been tracked back to the Cretaceous Terrestrial Revolution, 100 million years ago (Ma), the time when flowering plants began their takeover of terrestrial ecosystems, associated with diversification of coevolving insects and insect-eating predators such as lizards, birds, and mammals. Squamates arose much earlier, but their long pre-Cretaceous history of some 150 million years (Myr) is documented by sparse fossils. Here, we provide evidence for an initial radiation of squamate morphology in the Middle and Late Jurassic (174–145 Ma), and show that they established their key ecological roles much earlier than had been assumed, and they have not changed them much since.