bn:00031262n
Noun Concept
Categories: Geologic time scales, Geological epochs, Geochronology, Units of geologic time by rank, Articles with short description
EN
epoch  geologic epoch  geological epoch  Geological Epochs
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A unit of geological time that is a subdivision of a period and is itself divided into ages WordNet 3.0
English:
geology
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EN
A unit of geological time that is a subdivision of a period and is itself divided into ages WordNet 3.0 & Open English WordNet
In geochronology, an epoch is a subdivision of the geologic timescale that is longer than an age but shorter than a period. Wikipedia
Subdivision of geological time; shorter than a period and longer than an age Wikidata
A unit of geologic time subdividing a period into smaller parts. Wiktionary
Geology: a unit of geologic time. Wiktionary (translation)
WordNet 3.0 & Open English WordNet
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