Geological Dictionary Paleontology Q–Z: an illustrated reference with definitions highlighting connections between stratigraphy, tectonics, and the fossil record, tracing major geological processes and biological events across deep time and Earth’s evolving environments. ...

The extinction of dinosaurs was part of the mass extinction that occurred at the Cretaceous-Paleogene boundary. It affected all continents and wiped out many groups of animals. Researchers explain it by various causes and the effects of several mechanisms of destruction. ...