Some mammals used highly complex teeth to compete with dinosaurs: study
Wednesday, March 14, 2012 - 13:00
in Paleontology & Archaeology
Conventional wisdom holds that during the Mesozoic Era, mammals were small creatures that held on at life's edges. But at least one mammal group, rodent-like creatures called multituberculates, actually flourished during the last 20 million years of the dinosaurs' reign and survived their extinction 66 million years ago.