50 points match the period with the life events 1. dinosaurs, pterosaurs, modern reptile groups and large marine reptiles diverge from archosaurs. plants recover from the permian extinction. 2. duck billed and horned dinosaurs become the dominant land herbivores. flowering plants become common. 3. sauropods feeding on conifers dominate much of the landscape. a. jurassic b. triassic c. cretaceous