geological period (English, noun)
Senses:
instances: word: Aquitanian
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word: Archaean
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word: Burdigalian
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word: Calabrian
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word: Calymmian
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word: Cambrian
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word: Carboniferous
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word: Cenozoic
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word: Cisuralian
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word: Cretaceous
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word: Cryogenian
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word: Devonian
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word: Drumian
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word: Ectasian
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word: Ediacaran
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word: Eoarchean
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word: Eocene
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word: Fortunian
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word: Furongian
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word: Gelasian
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word: Guadalupian
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word: Guzhangian
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word: Hadean
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word: Holocene
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word: Jiangshanian
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word: Jurassic
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word: Langhian
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word: Llandovery
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word: Lopingian
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word: Ludlow
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word: Mesoarchean
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word: Mesoproterozoic
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word: Mesozoic
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word: Messinian
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word: Miocene
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word: Neoarchean
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word: Neogene
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word: Neoproterozoic
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word: Oligocene
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word: Ordovician
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word: Orosirian
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word: Paibian
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word: Paleoarchean
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word: Paleocene
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word: Paleogene
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word: Paleoproterozoic
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word: Paleozoic
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word: Permian
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word: Phanerozoic
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word: Piacenzian
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word: Pleistocene
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word: Pliocene
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word: Pridoli
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word: Proterozoic
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word: Quaternary
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word: Rhyacian
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word: Serravallian
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word: Siderian
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word: Silurian
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word: Statherian
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word: Stennian
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word: Terreneuvian
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word: Tonian
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word: Tortonian
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word: Triassic
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word: Wenlock
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word: Zanclean
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related: word: eon
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word: Appendix:Geologic timescale
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tags: no-gloss
Forms: