24 julio 2014
After the asteroid impact at the end of the Cretaceous period that triggered the dinosaurs’ extinction and ushered in the Paleocene, leaf-mining insects in the western United States completely disappeared. Only a million years later, at Mexican Hat, in southeastern Montana, fossil leaves show diverse leaf-mining traces from new insects that were not present during the Cretaceous, according to paleontologists.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ENnYEQvYiQ0/140724141602.htm
