As part of the Hooper Virtual Paleontological Museum this site provides a detailed summary of extinction events throughout time, hypotheses for their causes and the long-term implications of such events. The text describes all of the major extinctions, including the Cretaceous/Tertiary extinction, with scientific illustrations, photos and artistic renditions. Specific topics include major and minor mass biologic extinctions, temporal patterns of extinction, the demise of the dinosaurs, and all Phanerozoic extinction events.