The story is mostly about late Permian plant fossils found in Jordan, and the wider idea behind it is the question whether the tropics serve as a source of biodiversity for the global biosphere, i.e. as a "cradle" of evolution.
Read all about it:
Finding the cradles of evolution
Current Biology Volume 29, issue 3, pages R71-R73, February 04, 2019
FREE access to full text and PDF download
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNmXLxxWNDRS8UTSFZic132hiTVbBmwyrF2oeM40jVDjdsotfeYs0yqbLmSiWmvbpaPCZSr537XHUa3h35sqZd6N0cGlnlQ50bXyljqx6p_sDWaxVzsqHN2_PLiUf2g73ZpFQRbw/s320/ancient-fern.jpg)
An almost complete frond of the corystosperm Dicroidum irnense found at the Umm Irna Formation in Jordan and dated to the late Permian. These seed plants were widespread in the Triassic, but became extinct in the Jurassic. (Photo: © Patrick Blomenkemper.)
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