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Media type:
E-Article
Title:
The Jurassic rise of squamates as supported by lepidosaur disparity and evolutionary rates
Contributor:
Bolet, Arnau;
Stubbs, Thomas L;
Herrera-Flores, Jorge A;
Benton, Michael J
Published:
eLife Sciences Publications, Ltd, 2022
Published in:
eLife, 11 (2022)
Language:
English
DOI:
10.7554/elife.66511
ISSN:
2050-084X
Origination:
Footnote:
Description:
<jats:p>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.</jats:p>