Feds: Eastern puma extinct, protections not needed
Eastern puma declared extinct––but did it ever really exist? - Animals 24-7
Are Pumas extinct? - Quora
Eastern Puma declared officially extinct
Agency: Eastern puma extinct, drops protection
Local Mountain Lion Population Faces Precipitous Decline in Genetic Diversity Within 50 Years, Possible Extinction - Santa Monica Mountains National Recreation Area (U.S. National Park Service)