Approximately 250 million years ago, during the Permian-Triassic extinction event, which is also popularly known as the period of "The Great Dying", the Earth experienced its most catastrophic ...
Long before dinosaurs ever walked the Earth, a terrifying predator ruled the land – and it was unlike anything alive today. In this video, we journey back to the Permian period to meet Dimetrodon, a ...
The history of excavation of Permo-Triassic vertebrates from eastern Europe / Vitali G. Ochev, Mikhail V. Surkov -- The amniote faunas of the Russian Permian: implications for Late Permian terrestrial ...
Respiration and the body plans of animal life -- Oxygen through time -- Evolving respiratory systems as a cause of the Cambrian Explosion -- The Ordovician : Cambrian Explosion part II -- The Silurian ...