Erathem: In stratigraphy, paleontology, geology, and geobiology an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale. It can therefore be used as a chronostratigraphic unit of time which ... (Earth) [100%] 2023-11-23 [Erathems] [Chronostratigraphy]...
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