Katian
General info
Belongs to
Type chronostratigraphy
Rank Stage
Scope global
Status formal standard
Year 2003
Etymon Katy Lake, Oklahoma, USA
Original locality Black Knob Ridge outcrop
Age top (Ma) 445.2
Age base (Ma) 453
Date added 2003-04-02
Date changed 2022-11-04
ReferenceContentYear1PagesRemarks
Gradstein et al., 2004
2004
Gradstein et al., 2012
2012
604-606
Goldman et al., 2020
2020
630-694