1. Triassic-Jurassic extinction event (approx. 201 million years ago): The first major extinction event of the Mesozoic era, which wiped out around 20% of all marine species and many reptile species.
2. Formation of Pangea (approx. 299-200 million years ago): During the early and middle portions of the Mesozoic era, the supercontinent Pangea was formed as the Earth's tectonic plates slowly shifted and collided.
3. Jurassic-Cretaceous extinction event (approx. 145 million years ago): The second major extinction event, which eliminated many species of marine reptiles and ammonites, as well as several species of dinosaurs.
4. Development of flowering plants (approx. 140 million years ago): During the Cretaceous period, flowering plants (angiosperms) began to diversify and spread across the Earth, leading to the evolution of many new species of insects and mammals.
5. Seafloor spreading and the formation of mid-ocean ridges (approx. 150 million years ago): As the Earth's tectonic plates continued to move, new ocean crust was formed at mid-ocean ridges, leading to the eventual breakup of Pangea and the formation of the modern continents.
6. Rise of the dinosaurs (approx. 230-65 million years ago): The Mesozoic era is perhaps most famous for the evolution and dominance of the dinosaurs, which diversified into a wide variety of shapes and sizes and thrived for millions of years before being wiped out by the Cretaceous-Paleogene extinction event.
Write major geological events of mesozoic era
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