Miocene Sharks and the Origins of the Modern Shark Fauna presented by Brett Kent on 09/30/2021 скачать в хорошем качестве

Miocene Sharks and the Origins of the Modern Shark Fauna presented by Brett Kent on 09/30/2021

Sharks! Sink Your Teeth In! Lecture Series Miocene Sharks and the Origins of the Modern Shark Fauna September 30th, 2021 (7-8 pm) Presented by Brett Kent During the Miocene, there was a remarkable restructuring of shark communities. Simple tooth morphologies and dentitions that had dominated shark faunas for three hundred million years were rapidly replaced by more complex and diverse dentitions that reflected an expanded range of lifestyles. The factors that triggered this diversification are still only partially understood, but the revolutionary changes that occurred during the Miocene helped establish the pattern for the shark communities we have today. Brett Kent is a Principal Lecturer at the University of Maryland, College Park. He has worked on the fossil sharks of Middle Atlantic states for more than thirty years, with an emphasis on the giant sharks of the Neogene. He is best known for his research on the false mako shark (Parotodus benedenii) and the giant thresher sharks (Alopias spp.). In 2018, he published a comprehensive review of the fossil cartilaginous fishes of Calvert Cliffs in the Smithsonian Contributions to Paleobiology.