Explore the Earth's largest mass extinction event in this 57-minute lecture from the Royal Tyrrell Museum Speaker Series. Delve into the Permian-Triassic boundary catastrophe as viewed from Arctic Canada, presented by Dr. Benoit Beauchamp from the University of Calgary. Examine five stratigraphic sequences, ammonoid fauna, and the sub-Triassic unconformity. Investigate key locations such as Meishan, China, and the Sverdrup Basin in Arctic Canada. Learn about biostratigraphy, sequence stratigraphy, and the breakdown of silicate buffering leading to a runaway greenhouse effect. Discover the role of the Siberian Traps in this global event and explore the continuous Permian-Triassic transition in the Sverdrup Basin. Gain insights into the lead-up, catastrophe, and aftermath of this pivotal moment in Earth's history through geological evidence and expert analysis.