ypresian stage

  • 21Eocene — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene …

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  • 22Clarkforkian — The Clarkforkian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 56,800,000 to 55,400,000 years BP lasting 1.4 million… …

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  • 23Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …

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  • 24Oligocene — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene …

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  • 25Middle Pleistocene — Subdivisions of the Quaternary Period System Series Stage Age (Ma) Quaternary Holocene 0–0.0117 Pleistocene Tarantian (Upper) 0.0117–0.126 …

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  • 26Changhsingian — System Series Stage Age (Ma) Triassic Lower Induan younger Permian Lopingian …

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  • 27Permian — For the language family, see Permic languages. For the high school, see Permian High School. For the geological basins, see Permian Basin. Permian Period 299–251 million years ago …

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  • 28Moscovian (Carboniferous) — System Subsystem/ Series Stage Age (Ma) Permian Cisuralian Asselian younger Carboniferous Pennsylvanian …

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  • 29Maastrichtian — System Series Stage Age (Ma) Paleogene Paleocene Danian younger Cretaceous Upper …

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  • 30Olenekian — System Series Stage Age (Ma) Jurassic Lower Hettangian younger Triassic Upper …

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  • 31Pennsylvanian — This article is about the geologic subperiod. For passenger train, see Pennsylvanian (Amtrak). System Subsystem/ Series Stage Age (Ma) Permian Cisuralian Asselian younger …

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  • 32Mayfly — For other uses, see Mayfly (disambiguation). Mayfly Temporal range: Late Carboniferous Recent[1] …

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  • 33Norian — System Series Stage Age (Ma) Jurassic Lower Hettangian younger Triassic Upper …

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  • 34Piacenzian — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …

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  • 35Ordovician — Period 488.3–443.7 million years ago …

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  • 36Messinian — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …

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  • 37Coniacian — System Series Stage Age (Ma) Paleogene Paleocene Danian younger Cretaceous Upper …

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  • 38Pliensbachian — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …

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  • 39Cambrian — For other uses, see Cambrian (disambiguation). Cambrian Period 542–488.3 million years ago …

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  • 40Eoceno — Era[1] Período Época Millones años Cenozoico …

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