Devonian
General info
Belongs to
Type chronostratigraphy
Rank System
Scope global
Status formal standard
Author Adam Sedgwick, Roderick I Murchison
Year 1839
Etymon Devon County, England
Age top (Ma) 358.9
Age base (Ma) 419.2
Age (Ma)
Index
D
Alt. index
D
Date changed 2022-11-04