Dinosaurs and marine reptiles.
Mesozoic and Paleozoic
Extinction did.
The Cretaceous- Tertiary Extinction
Scientists believe the Cretaceous-Paleogene extinction event, or the plants dying at the end of the Mesozoic Era, was caused by a massive asteroid/comet impact. The theory suggests that the impact had catastrophic effects on the environment, including an impact winter, which prevented the plants from carrying out photosynthesis.
extinction...
Mesozoic and Paleozoic
An asteroid impact
Mesozoic
Adaptation and evolution, along with the extinction of the dominant land animals of the late Mesozoic.
Mass extinction
mass extinction
Mesozoic
meteorite collision
Mesozoic era
A mass extinction
a comet impacting the earth
Dinosaurs