https://gcmd.earthdata.nasa.gov/kms/concept/d002ab48-1cd0-42e3-9fc1-608db632e75c
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definition | The Eifelian is one of two faunal stages in the Middle Devonian epoch. It lasted from 393.3 ± 1.2 million years ago to 387.7 ± 0.8 million years ago. It was preceded by the Emsian stage and followed by the Givetian stage. | |||||||||
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in scheme | chronounits original |