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The Paleontology Page
Today's review of paleontology was the transition from fish to mammal-like reptiles, which for the most part:
- tectonic plates;
- Vaalbara
- Rodinia
- Gondwana in the southern hemisphere
- Pangaea
- evolution of amphibians
- the Triassic extinction (fourth in severity of the five major extinction episodes)
- also called the Triassic-Jurassic extinction; global; 76% of all marine and terrestrial species about 20% of all taxonomic families;
- believed to be the key moment that allowed the dinosaurs to become the dominant land animals on earth
- the Permian-Triassic extinction (the "mother of all extinctions);
- 96% of all marine species and 70% of all terrestrial vertebrate species becoming extinct; even insects took a big hit; the only one in their (insect) history;
- the "Noah" of the survivors of the Permian-Triassic extinction? a pig-like herbivore, genus Lystrosaurus
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