|Silurian||Pridoli||no faunal stages defined||older|
|Subdivision of the Devonian system|
according to the ICS, as of 2017.
The Eifelian is one of two faunal stages in the Middle Devonian epoch. It lasted from 397.5 ± 2.7 million years ago to 391.8 ± 2.7 million years ago. It was preceded by the Emsian stage and followed by the Givetian stage.
North American subdivisions of the Eifelian Stage include Southwood, Cazenovia (pars), and Cazenovian (pars).
Name and definition
|Arthropods of the Eifelian|
|Klerf Formation, Rhineland, Germany; Wyoming|
- "GSSP for the Emsian - Eifelian Stage Boundary". stratigraphy. Retrieved 30 June 2017.
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