Eifelian

System/
Period
Series/
Epoch
Stage/
Age
Age (Ma)
Carboniferous Mississippian Tournaisian younger
Devonian Upper/
Late
Famennian 358.9 372.2
Frasnian 372.2 382.7
Middle Givetian 382.7 387.7
Eifelian 387.7 393.3
Lower/
Early
Emsian 393.3 407.6
Pragian 407.6 410.8
Lochkovian 410.8 419.2
Silurian Pridoli no faunal stages defined older
Subdivision of the Devonian system
according to the ICS, as of 2017.[1]

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.

North American subdivisions of the Eifelian Stage include Southwood, and part of Cazenovia (or Cazenovian).

Name and definitionEdit

Named after the Eifel Hills located in Western Germany where the GSSP is exposed in the Wetteldorf Richtschnitt. [2]

Eifelian lifeEdit

ArthropodsEdit

Arthropods of the Eifelian
Taxa Presence Location Description Images
Jaekelopterus Klerf Formation, Rhineland, Germany
Wyoming[citation needed]
Hollardrops mesocristata Mount Issoumour Formation, Morocco

ReferencesEdit

  1. ^ http://www.stratigraphy.org/index.php/ics-chart-timescale
  2. ^ "GSSP for the Emsian - Eifelian Stage Boundary". stratigraphy. Retrieved 30 June 2017.