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| * Devonian - first tetrapods - evolution of fish onto land | * Devonian - first tetrapods - evolution of fish onto land | ||
| * Carboniferous - reptiles, amphibians, spiders, conifers, amniotic eggs (340 mya), synapsids | * Carboniferous - reptiles, amphibians, spiders, conifers, amniotic eggs (340 mya), synapsids | ||
| - | * Permian - synapsids (proto-mammalian reptiles) | + | * Permian - more synapsids (proto-mammalian reptiles). |
| * 250 mya - Extinction event, 83% of species die off | * 250 mya - Extinction event, 83% of species die off | ||
| * 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 | ||
| - | * 200 mya - Tr-J extinction event allows dinosaurs to start becoming | + | * Extinction event 200 mya allows dinosaurs to start to become |
| * Jurassic - squids, frogs, birds | * Jurassic - squids, frogs, birds | ||
| - | * Cretaceous - dinosaurs | + | * Cretaceous - more dinosaurs, flowering plants, snakes, modern fish, toothed birds |
| * 65 mya - Meterorite extinction event (off Yucatan peninsula) kills off most large animals | * 65 mya - Meterorite extinction event (off Yucatan peninsula) kills off most large animals | ||
| * **Cenozoic Era** : 65 mya - present | * **Cenozoic Era** : 65 mya - present | ||
| - | * Tertiary - mammals | + | * Tertiary - more mammals, grasses, apes, hominids |
| * Quaternary | * Quaternary | ||
| * Pleistocene (1.8 mya - 8000 ya) - mammoths, Neanderthals | * Pleistocene (1.8 mya - 8000 ya) - mammoths, Neanderthals | ||
| * Holocene (8000 ya - now) - modern humans | * Holocene (8000 ya - now) - modern humans | ||
| - | |||
| - | ===== Human History Overview ===== | ||
| - | Human historical ages based on technology vary based on location since different areas developed a different rates. | ||
| - | * 4 mya - earliest humans | ||
| - | * ** Stone Age ** : 2.5 mya - ~6000 BC | ||
| - | * Paleolithic age - 2.5 mya - ~8000BC | ||
| - | Still in the Pleistocene era. Human ancestors roam as bands of hunters/ | ||
| - | * Mesolithic age - ~8000BC - ~6000BC | ||
| - | Rising sea levels force a need to adapt. | ||
| - | * Neolithic age - ~6000BC - ~3000BC | ||
| - | * ** Bronze Age ** : | ||
| - | * ** Iron Age ** : | ||
| - | * ** Classical Era ** : | ||
| - | * ** Middle Ages ** | ||
| - | * ** Reformation & Renaissance ** | ||