Mesozoic Earth - Postosuchus on hilltop

Location Worldwide 220 million years ago Mean atmospheric O₂ 80% of modern level Mean atmospheric CO₂ 6x pre-industrial level Mean temperature 3°C above modern level		Geologic Time Scale Era: Mesozoic Period: Triassic Epoch: Late Age: Carnian

	Postosuchus on hilltop A 12-foot-long, 1,000 pound rauisuchian archosaur of the genus Postosuchus wanders a hilltop 220 million years ago in what is today Texas. Surrounding the Postosuchus are various cycads, ferns, and tree-like Glossopteridales. With a crocodile-like body and tyrannosaur-like head, Postosuchus was likely a fierce apex predator that preyed upon Dicynodonts and other animals smaller than itself, including some of the first dinosaurs.