Rainforest collapse 307 million years ago impacted the evolution of early land vertebrates
(PHYSorg.com Archaeology & Fossils)

Researchers at the University of Birmingham have discovered that the mass extinction seen in plant species caused by the onset of a drier climate 307 million years ago led to extinctions of some groups of tetrapods, the first vertebrates to live on land, but allowed others to expand across the globe. This research is published today in the journal Proceedings of the Royal Society B.