Linked Data Service of GSJ
Geological age
[ Devonian ] Upper level
Devonian
Late Devonian
Famennian
372.2 ± 1.6
Frasnian
382.7 ± 1.6
Middle Devonian
Givetian
387.7 ± 0.8
Eifelian
393.3 ± 1.2
Early Devonian
Emsian
407.6 ± 2.6
Pragian
410.8 ± 2.8
Lochkovian
419.2 ± 3.2