English > Paleozoic era: 1 sense > noun 1, time| Meaning | From 544 million to about 230 million years ago. |
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| Synonym | Paleozoic |
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| Instance of | era, geological era | A major division of geological time |
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| Parts | Cambrian, Cambrian period | From 544 million to about 500 million years ago |
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| Carboniferous, Carboniferous period | From 345 million to 280 million years ago |
| Devonian, Devonian period, Age of Fishes | From 405 million to 345 million years ago |
| Ordovician, Ordovician period | From 500 million to 425 million years ago |
| Permian, Permian period | From 280 million to 230 million years ago |
| Silurian, Silurian period | From 425 million to 405 million years ago |
| Spanish | Era Paleozoica, Era Primaria, paleozoico, Paleozoico |
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| Catalan | Paleozoic |
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