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Erathem

💡 Words with a Similar Meaning to "Erathem"

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WordDefinition
eonothemnoun(stratigraphy, geology) The totality of rock strata laid down in the stratigraphic record during a certain eon of the continuous geologic timescale.
geologic eranoun(geology, Paleontology) A subdivision of geologic time that divides an eon into smaller timeframes.
epochnounA particular period of history, or of a person's life, especially one considered noteworthy or remarkable.
periodnoun(now chiefly Canada, US, Philippines) The punctuation mark “.” (indicating the ending of a sentence or marking an abbreviation).
eratostheniannounThe epoch in the lunar geologic timescale that occurred between 3200 million and 1100 million years ago.
stagenounA phase.
eoarcheannoun(geology) Of a geologic era within the Archaean eon from about 4600 to 3600 million years ago; the first single-celled life began at this time.
subepochnoun(geology) A geochronologic unit comprising one or more ages, being a period of generally agreed significance within an epoch.
neoarcheannoun(geology) Of a geologic era within the Archaean eon from about 2800 to 2500 million years ago.
phanerozoicnoun(geology) A geologic eon from about 538.8 million years ago to the present
ectasiannoun(geology) The Ectasian period.
supereonnoun(geology) A time period encompassing more than one eon, principally used to characterize the Precambrian.
embriannounThe epoch in the lunar geologic timescale that occurred between 3850 million years ago and 3200 million years ago.
upper boundarynoun(geology) The most recent time encompassed by a given geological period.
eocenenoun(geology) The Eocene epoch.
geologic timenounTime in relation to specific geologic features or events recorded in the Earth's rock strata.
paragenesisnoun(geology) An ordered chronological sequence of mineral formations.
emsiannoun(geology, paleontology) A subdivision of the Devonian period.
stratigraphynoun(geology) The study of rock layers and the layering process (stratification).
paleoarcheannoun(geology) Of a geologic era within the Archaean eon from about 3600 to 3200 million years ago; the first aerobic bacteria appeared at this time.

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