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| * Carboniferous - reptiles, amphibians, spiders, conifers, amniotic eggs (340 mya), synapsids | * Carboniferous - reptiles, amphibians, spiders, conifers, amniotic eggs (340 mya), synapsids | ||
| * Permian - more synapsids (proto-mammalian reptiles). | * Permian - more synapsids (proto-mammalian reptiles). | ||
| - | * 250 mya - Extinction event, | + | * 250 mya - Extinction event, |
| * 300 mya - 250 mya - last supercontinent Pangaea exists | * 300 mya - 250 mya - last supercontinent Pangaea exists | ||
| * **Mesozoic (Secondary) Era** : 250 - 65 mya | * **Mesozoic (Secondary) Era** : 250 - 65 mya | ||
| * Triassic - turtles, lizards, dinosaurs, mammals | * Triassic - turtles, lizards, dinosaurs, mammals | ||
| - | * Extinction event 200 mya allows dinosaurs to start to become dominant. Kills > 50 % of species. | ||
| * Jurassic - squids, frogs, birds | * Jurassic - squids, frogs, birds | ||
| * Cretaceous - more dinosaurs, flowering plants, snakes, modern fish, toothed birds | * Cretaceous - more dinosaurs, flowering plants, snakes, modern fish, toothed birds | ||