Lower Devonian
General info
Belongs to
Type chronostratigraphy
Rank Series
Scope global
Status formal standard
Age top (Ma) 393.3
Age base (Ma) 419.2
Age (Ma)
Index
D1
Alt. index
D1
Date changed 2022-11-04
ReferenceContentYear1PagesRemarks
Becker et al., 2020
2020
733-810
Gradstein et al., 2004
2004
211
Gradstein et al., 2012
2012