Ask us anythingMatch the time frame listed on the left with the characteristic listed on the right. A. Mesozoic era Tyrannosaurus Rex lived. B. End of the Paleozoic era The largest mass extinction hap?

A. Mesozoic era - Tyrannosaurus Rex lived during the late Mesozoic era, specifically in the late Cretaceous period. B. End of the Paleozoic era - The largest mass extinction event, known as the Permian-Triassic extinction event, occurred at the end of the Paleozoic era, approximately 252 million years ago.