Norian Stage
The Norian (227–209 Ma) is the second age of the Late Triassic, occurring after the Carnian, and before the Rhaetian.
What happened during this time?
What happened during this time?
Sauropodomorph dinosaurs begin to have success on land.
Herbivorous therapsids (the large Dicynodonts and medium-sized traversodonts) decline on land.
The success of dinosaurs over therapsids seems to be due to climatic factors
The increasing aridity meant that the moist biome that had enabled the therapsids to flourish had now become a narrow equatorial strip [Olsen et al 2001], bordered by deserts and semi-deserts to both north and south.
