Mesozoic
geo:time:era:mesozoicMesozoic Era (251.9–66 Ma): Age of Reptiles; dinosaurs dominant; first mammals, first birds, first flowering plants; Pangaea breaks up; ends with K-Pg mass extinction.
Mesozoic Era (251.9–66 Ma): Age of Reptiles; dinosaurs dominant; first mammals, first birds, first flowering plants; Pangaea breaks up; ends with K-Pg mass extinction.